diff --git a/business/jxstore/report/report.go b/business/jxstore/report/report.go
index b7197acc0..21259675c 100644
--- a/business/jxstore/report/report.go
+++ b/business/jxstore/report/report.go
@@ -469,6 +469,6 @@ func CalculateCoverArea(coordinate []string) (area float64) {
 	}
 	sum += (xyList[0][0] - xyList[len(xyList)-1][0]) * (xyList[0][1] + xyList[len(xyList)-1][1])
 	sum /= float64(2)
-	area, _ = decimal.NewFromFloat(sum).Round(2).Float64()
+	area, _ = decimal.NewFromFloat(sum).Round(3).Float64()
 	return area
 }