diff --git a/business/jxutils/jxutils.go b/business/jxutils/jxutils.go
index a24657e59..0de80c472 100644
--- a/business/jxutils/jxutils.go
+++ b/business/jxutils/jxutils.go
@@ -210,6 +210,9 @@ func EarthDistance(lng1, lat1, lng2, lat2 float64) float64 {
 	lng2 = lng2 * rad
 	theta := lng2 - lng1
 	dist := math.Acos(math.Sin(lat1)*math.Sin(lat2) + math.Cos(lat1)*math.Cos(lat2)*math.Cos(theta))
+	if dist < 0 {
+		dist = 0
+	}
 	return dist * radius
 }