diff --git a/backend/src/main/java/io/metersphere/track/service/TestCaseService.java b/backend/src/main/java/io/metersphere/track/service/TestCaseService.java
index b62e5e88df..fc176ad5e1 100644
--- a/backend/src/main/java/io/metersphere/track/service/TestCaseService.java
+++ b/backend/src/main/java/io/metersphere/track/service/TestCaseService.java
@@ -457,7 +457,7 @@ public class TestCaseService {
             if (t.getMethod().equals("manual")) {
                 String steps = t.getSteps();
                 String setp = "";
-                if (steps.contains("null")) {
+                if (steps.contains("null") && !steps.contains("\"null\"")) {
                     setp = steps.replace("null", "\"\"");
                 } else {
                     setp = steps;