diff --git a/internal/app/webhook/chirp_stack.go b/internal/app/webhook/chirp_stack.go
index 2463ffc..2f46263 100644
--- a/internal/app/webhook/chirp_stack.go
+++ b/internal/app/webhook/chirp_stack.go
@@ -4,6 +4,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"io"
+	"math"
 	"net/http"
 	"time"
 
@@ -256,6 +257,12 @@ func (c *ChirpStackListener) handleUpEvent(event *UpEvent) {
 	for i, deviceID := range deviceIDs {
 		rawSensorValue := values[i] // 这是设备上报的原始值
 
+		// 检查设备上报的值是否为 NaN (Not a Number)，如果是则跳过
+		if math.IsNaN(float64(rawSensorValue)) {
+			c.logger.Warnf("设备 (ID: %d) 上报了一个无效的 NaN 值，已跳过当前值的记录。", deviceID)
+			continue
+		}
+
 		// 5.1 获取设备及其模板
 		dev, err := c.deviceRepo.FindByID(deviceID)
 		if err != nil {