diff --git a/internal/web/actions/default/servers/components/cache/update.go b/internal/web/actions/default/servers/components/cache/update.go
index e2f3238e..44dfcd9f 100644
--- a/internal/web/actions/default/servers/components/cache/update.go
+++ b/internal/web/actions/default/servers/components/cache/update.go
@@ -56,7 +56,7 @@ func (this *UpdateAction) RunGet(params struct {
 		{
 			_, ok := cachePolicy.Options["enableMMAP"]
 			if !ok {
-				cachePolicy.Options["enableMMAP"] = true
+				cachePolicy.Options["enableMMAP"] = false
 			}
 		}
 	}
diff --git a/web/views/@default/servers/components/cache/createPopup.html b/web/views/@default/servers/components/cache/createPopup.html
index 61b57646..da42c101 100644
--- a/web/views/@default/servers/components/cache/createPopup.html
+++ b/web/views/@default/servers/components/cache/createPopup.html
@@ -73,7 +73,7 @@
             <tr v-show="moreOptionsVisible && policyType == 'file'">
                 <td class="color-border">启用MMAP</td>
                 <td>
-                    <checkbox name="enableMMAP" checked="checked"></checkbox>
+                    <checkbox name="enableMMAP"></checkbox>
                     <p class="comment">选中后，表示允许系统自动利用MMAP提升缓存读取性能。</p>
                 </td>
             </tr>
diff --git a/web/views/@default/servers/components/cache/update.js b/web/views/@default/servers/components/cache/update.js
index 8ba862cf..7a8ee19f 100644
--- a/web/views/@default/servers/components/cache/update.js
+++ b/web/views/@default/servers/components/cache/update.js
@@ -12,7 +12,7 @@ Tea.context(function () {
 		if (this.policyType == "file") {
 			let options = this.cachePolicy.options
 			if (options != null && typeof options == "object" && typeof options["dir"] === "undefined") {
-				options["enableMMAP"] = true
+				options["enableMMAP"] = false
 				options["dir"] = "/opt/cache"
 				options["memoryPolicy"] = {
 					capacity: {