diff --git a/internal/nodes/node.go b/internal/nodes/node.go
index a9441b8..c012834 100644
--- a/internal/nodes/node.go
+++ b/internal/nodes/node.go
@@ -228,6 +228,11 @@ func (this *Node) Start() {
 		stats.SharedHTTPRequestStatManager.Start()
 	})
 
+	// 硬盘TRIM任务
+	goman.New(func() {
+		NewTrimDisksTask().Start()
+	})
+
 	// 启动端口
 	err = sharedListenerManager.Start(nodeConfig)
 	if err != nil {
diff --git a/internal/nodes/task_trim_disks.go b/internal/nodes/task_trim_disks.go
new file mode 100644
index 0000000..ea0d090
--- /dev/null
+++ b/internal/nodes/task_trim_disks.go
@@ -0,0 +1,74 @@
+// Copyright 2024 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package nodes
+
+import (
+	"fmt"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	executils "github.com/TeaOSLab/EdgeNode/internal/utils/exec"
+	"github.com/shirou/gopsutil/v3/load"
+	"time"
+)
+
+// TrimDisksTask trim ssd disks automatically
+type TrimDisksTask struct {
+}
+
+// NewTrimDisksTask create new task
+func NewTrimDisksTask() *TrimDisksTask {
+	return &TrimDisksTask{}
+}
+
+// Start the task
+func (this *TrimDisksTask) Start() {
+	// execute once
+	err := this.loop()
+	if err != nil {
+		remotelogs.Warn("TRIM_DISKS", "trim disks failed: "+err.Error())
+	}
+
+	var ticker = time.NewTicker(7 * 24 * time.Hour) // 1 week
+	for range ticker.C {
+		// prevent system overload
+		for i := 0; i < 24; i++ {
+			stat, loadErr := load.Avg()
+			if loadErr == nil && stat != nil && stat.Load1 > 20 {
+				// wait load downgrade
+				time.Sleep(1 * time.Hour)
+			} else {
+				break
+			}
+		}
+
+		// run the task
+		err = this.loop()
+		if err != nil {
+			remotelogs.Warn("TRIM_DISKS", "trim disks failed: "+err.Error())
+		}
+	}
+}
+
+// run the task once
+func (this *TrimDisksTask) loop() error {
+	var nodeConfig = sharedNodeConfig
+	if nodeConfig == nil {
+		return nil
+	}
+	if !nodeConfig.AutoTrimDisks {
+		return nil
+	}
+
+	trimExe, err := executils.LookPath("fstrim")
+	if err != nil {
+		return fmt.Errorf("'fstrim' command not found: %w", err)
+	}
+
+	var cmd = executils.NewCmd(trimExe, "-a").
+		WithStderr()
+	err = cmd.Run()
+	if err != nil {
+		return fmt.Errorf("'fstrim' execute failed: %s", cmd.Stderr())
+	}
+
+	return nil
+}