diff --git a/pkg/rpc/pb/service_authority_key.pb.go b/pkg/rpc/pb/service_authority_key.pb.go
index e494067..dab8eb9 100644
--- a/pkg/rpc/pb/service_authority_key.pb.go
+++ b/pkg/rpc/pb/service_authority_key.pb.go
@@ -439,6 +439,100 @@ func (x *CheckAuthorityResponse) GetEdition() string {
 	return ""
 }
 
+// 查询授权容量
+type FindAuthorityQuotaRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *FindAuthorityQuotaRequest) Reset() {
+	*x = FindAuthorityQuotaRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_service_authority_key_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FindAuthorityQuotaRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FindAuthorityQuotaRequest) ProtoMessage() {}
+
+func (x *FindAuthorityQuotaRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_service_authority_key_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use FindAuthorityQuotaRequest.ProtoReflect.Descriptor instead.
+func (*FindAuthorityQuotaRequest) Descriptor() ([]byte, []int) {
+	return file_service_authority_key_proto_rawDescGZIP(), []int{8}
+}
+
+type FindAuthorityQuotaResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	MaxNodes   int32 `protobuf:"varint,1,opt,name=maxNodes,proto3" json:"maxNodes,omitempty"`     // 节点数限制
+	CountNodes int32 `protobuf:"varint,2,opt,name=countNodes,proto3" json:"countNodes,omitempty"` // 已占用节点数
+}
+
+func (x *FindAuthorityQuotaResponse) Reset() {
+	*x = FindAuthorityQuotaResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_service_authority_key_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FindAuthorityQuotaResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FindAuthorityQuotaResponse) ProtoMessage() {}
+
+func (x *FindAuthorityQuotaResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_service_authority_key_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use FindAuthorityQuotaResponse.ProtoReflect.Descriptor instead.
+func (*FindAuthorityQuotaResponse) Descriptor() ([]byte, []int) {
+	return file_service_authority_key_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *FindAuthorityQuotaResponse) GetMaxNodes() int32 {
+	if x != nil {
+		return x.MaxNodes
+	}
+	return 0
+}
+
+func (x *FindAuthorityQuotaResponse) GetCountNodes() int32 {
+	if x != nil {
+		return x.CountNodes
+	}
+	return 0
+}
+
 var File_service_authority_key_proto protoreflect.FileDescriptor
 
 var file_service_authority_key_proto_rawDesc = []byte{
@@ -482,33 +576,46 @@ var file_service_authority_key_proto_rawDesc = []byte{
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -523,7 +630,7 @@ func file_service_authority_key_proto_rawDescGZIP() []byte {
 	return file_service_authority_key_proto_rawDescData
 }
 
-var file_service_authority_key_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_service_authority_key_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_service_authority_key_proto_goTypes = []interface{}{
 	(*UpdateAuthorityKeyRequest)(nil),    // 0: pb.UpdateAuthorityKeyRequest
 	(*ReadAuthorityKeyRequest)(nil),      // 1: pb.ReadAuthorityKeyRequest
@@ -533,26 +640,30 @@ var file_service_authority_key_proto_goTypes = []interface{}{
 	(*ValidateAuthorityKeyResponse)(nil), // 5: pb.ValidateAuthorityKeyResponse
 	(*CheckAuthorityRequest)(nil),        // 6: pb.CheckAuthorityRequest
 	(*CheckAuthorityResponse)(nil),       // 7: pb.CheckAuthorityResponse
-	(*AuthorityKey)(nil),                 // 8: pb.AuthorityKey
-	(*RPCSuccess)(nil),                   // 9: pb.RPCSuccess
+	(*FindAuthorityQuotaRequest)(nil),    // 8: pb.FindAuthorityQuotaRequest
+	(*FindAuthorityQuotaResponse)(nil),   // 9: pb.FindAuthorityQuotaResponse
+	(*AuthorityKey)(nil),                 // 10: pb.AuthorityKey
+	(*RPCSuccess)(nil),                   // 11: pb.RPCSuccess
 }
 var file_service_authority_key_proto_depIdxs = []int32{
-	8, // 0: pb.ReadAuthorityKeyResponse.authorityKey:type_name -> pb.AuthorityKey
-	0, // 1: pb.AuthorityKeyService.updateAuthorityKey:input_type -> pb.UpdateAuthorityKeyRequest
-	1, // 2: pb.AuthorityKeyService.readAuthorityKey:input_type -> pb.ReadAuthorityKeyRequest
-	3, // 3: pb.AuthorityKeyService.resetAuthorityKey:input_type -> pb.ResetAuthorityKeyRequest
-	4, // 4: pb.AuthorityKeyService.validateAuthorityKey:input_type -> pb.ValidateAuthorityKeyRequest
-	6, // 5: pb.AuthorityKeyService.checkAuthority:input_type -> pb.CheckAuthorityRequest
-	9, // 6: pb.AuthorityKeyService.updateAuthorityKey:output_type -> pb.RPCSuccess
-	2, // 7: pb.AuthorityKeyService.readAuthorityKey:output_type -> pb.ReadAuthorityKeyResponse
-	9, // 8: pb.AuthorityKeyService.resetAuthorityKey:output_type -> pb.RPCSuccess
-	5, // 9: pb.AuthorityKeyService.validateAuthorityKey:output_type -> pb.ValidateAuthorityKeyResponse
-	7, // 10: pb.AuthorityKeyService.checkAuthority:output_type -> pb.CheckAuthorityResponse
-	6, // [6:11] is the sub-list for method output_type
-	1, // [1:6] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
+	10, // 0: pb.ReadAuthorityKeyResponse.authorityKey:type_name -> pb.AuthorityKey
+	0,  // 1: pb.AuthorityKeyService.updateAuthorityKey:input_type -> pb.UpdateAuthorityKeyRequest
+	1,  // 2: pb.AuthorityKeyService.readAuthorityKey:input_type -> pb.ReadAuthorityKeyRequest
+	3,  // 3: pb.AuthorityKeyService.resetAuthorityKey:input_type -> pb.ResetAuthorityKeyRequest
+	4,  // 4: pb.AuthorityKeyService.validateAuthorityKey:input_type -> pb.ValidateAuthorityKeyRequest
+	6,  // 5: pb.AuthorityKeyService.checkAuthority:input_type -> pb.CheckAuthorityRequest
+	8,  // 6: pb.AuthorityKeyService.findAuthorityQuota:input_type -> pb.FindAuthorityQuotaRequest
+	11, // 7: pb.AuthorityKeyService.updateAuthorityKey:output_type -> pb.RPCSuccess
+	2,  // 8: pb.AuthorityKeyService.readAuthorityKey:output_type -> pb.ReadAuthorityKeyResponse
+	11, // 9: pb.AuthorityKeyService.resetAuthorityKey:output_type -> pb.RPCSuccess
+	5,  // 10: pb.AuthorityKeyService.validateAuthorityKey:output_type -> pb.ValidateAuthorityKeyResponse
+	7,  // 11: pb.AuthorityKeyService.checkAuthority:output_type -> pb.CheckAuthorityResponse
+	9,  // 12: pb.AuthorityKeyService.findAuthorityQuota:output_type -> pb.FindAuthorityQuotaResponse
+	7,  // [7:13] is the sub-list for method output_type
+	1,  // [1:7] is the sub-list for method input_type
+	1,  // [1:1] is the sub-list for extension type_name
+	1,  // [1:1] is the sub-list for extension extendee
+	0,  // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_service_authority_key_proto_init() }
@@ -659,6 +770,30 @@ func file_service_authority_key_proto_init() {
 				return nil
 			}
 		}
+		file_service_authority_key_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*FindAuthorityQuotaRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_service_authority_key_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*FindAuthorityQuotaResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -666,7 +801,7 @@ func file_service_authority_key_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_service_authority_key_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   8,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
@@ -702,6 +837,8 @@ type AuthorityKeyServiceClient interface {
 	ValidateAuthorityKey(ctx context.Context, in *ValidateAuthorityKeyRequest, opts ...grpc.CallOption) (*ValidateAuthorityKeyResponse, error)
 	// 检查版本信息
 	CheckAuthority(ctx context.Context, in *CheckAuthorityRequest, opts ...grpc.CallOption) (*CheckAuthorityResponse, error)
+	// 查询授权容量
+	FindAuthorityQuota(ctx context.Context, in *FindAuthorityQuotaRequest, opts ...grpc.CallOption) (*FindAuthorityQuotaResponse, error)
 }
 
 type authorityKeyServiceClient struct {
@@ -757,6 +894,15 @@ func (c *authorityKeyServiceClient) CheckAuthority(ctx context.Context, in *Chec
 	return out, nil
 }
 
+func (c *authorityKeyServiceClient) FindAuthorityQuota(ctx context.Context, in *FindAuthorityQuotaRequest, opts ...grpc.CallOption) (*FindAuthorityQuotaResponse, error) {
+	out := new(FindAuthorityQuotaResponse)
+	err := c.cc.Invoke(ctx, "/pb.AuthorityKeyService/findAuthorityQuota", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // AuthorityKeyServiceServer is the server API for AuthorityKeyService service.
 type AuthorityKeyServiceServer interface {
 	// 设置Key
@@ -769,6 +915,8 @@ type AuthorityKeyServiceServer interface {
 	ValidateAuthorityKey(context.Context, *ValidateAuthorityKeyRequest) (*ValidateAuthorityKeyResponse, error)
 	// 检查版本信息
 	CheckAuthority(context.Context, *CheckAuthorityRequest) (*CheckAuthorityResponse, error)
+	// 查询授权容量
+	FindAuthorityQuota(context.Context, *FindAuthorityQuotaRequest) (*FindAuthorityQuotaResponse, error)
 }
 
 // UnimplementedAuthorityKeyServiceServer can be embedded to have forward compatible implementations.
@@ -790,6 +938,9 @@ func (*UnimplementedAuthorityKeyServiceServer) ValidateAuthorityKey(context.Cont
 func (*UnimplementedAuthorityKeyServiceServer) CheckAuthority(context.Context, *CheckAuthorityRequest) (*CheckAuthorityResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method CheckAuthority not implemented")
 }
+func (*UnimplementedAuthorityKeyServiceServer) FindAuthorityQuota(context.Context, *FindAuthorityQuotaRequest) (*FindAuthorityQuotaResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method FindAuthorityQuota not implemented")
+}
 
 func RegisterAuthorityKeyServiceServer(s *grpc.Server, srv AuthorityKeyServiceServer) {
 	s.RegisterService(&_AuthorityKeyService_serviceDesc, srv)
@@ -885,6 +1036,24 @@ func _AuthorityKeyService_CheckAuthority_Handler(srv interface{}, ctx context.Co
 	return interceptor(ctx, in, info, handler)
 }
 
+func _AuthorityKeyService_FindAuthorityQuota_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(FindAuthorityQuotaRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AuthorityKeyServiceServer).FindAuthorityQuota(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/pb.AuthorityKeyService/FindAuthorityQuota",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AuthorityKeyServiceServer).FindAuthorityQuota(ctx, req.(*FindAuthorityQuotaRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _AuthorityKeyService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "pb.AuthorityKeyService",
 	HandlerType: (*AuthorityKeyServiceServer)(nil),
@@ -909,6 +1078,10 @@ var _AuthorityKeyService_serviceDesc = grpc.ServiceDesc{
 			MethodName: "checkAuthority",
 			Handler:    _AuthorityKeyService_CheckAuthority_Handler,
 		},
+		{
+			MethodName: "findAuthorityQuota",
+			Handler:    _AuthorityKeyService_FindAuthorityQuota_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "service_authority_key.proto",
diff --git a/pkg/rpc/protos/service_authority_key.proto b/pkg/rpc/protos/service_authority_key.proto
index 4833591..19e93b5 100644
--- a/pkg/rpc/protos/service_authority_key.proto
+++ b/pkg/rpc/protos/service_authority_key.proto
@@ -22,6 +22,9 @@ service AuthorityKeyService {
 
 	// 检查版本信息
 	rpc checkAuthority(CheckAuthorityRequest) returns (CheckAuthorityResponse);
+
+	// 查询授权容量
+	rpc findAuthorityQuota(FindAuthorityQuotaRequest) returns (FindAuthorityQuotaResponse);
 }
 
 // 设置Key
@@ -66,4 +69,14 @@ message CheckAuthorityRequest {
 message CheckAuthorityResponse {
 	bool isPlus = 1;
 	string edition = 2;
+}
+
+// 查询授权容量
+message FindAuthorityQuotaRequest {
+
+}
+
+message FindAuthorityQuotaResponse {
+	int32 maxNodes = 1; // 节点数限制
+	int32 countNodes = 2; // 已占用节点数
 }
\ No newline at end of file