diff --git a/services/param/trigger/trigger_checker.c b/services/param/trigger/trigger_checker.c
index 6d61552e056b5e32981c52c9d68a4eaf03dd1d08..972ce925ec763885bc1dd62bdc6987b92c244515 100644
--- a/services/param/trigger/trigger_checker.c
+++ b/services/param/trigger/trigger_checker.c
@@ -328,8 +328,20 @@ int CheckMatchSubCondition(const char *condition, const char *input, int length)
 {
     PARAM_CHECK(condition != NULL, return 0, "Invalid condition");
     PARAM_CHECK(input != NULL, return 0, "Invalid input");
-    char *tmp = strstr(condition, input);
-    if ((tmp != NULL) && ((int)strlen(tmp) > length) && (tmp[length] == '=')) {
+    const char *tmp = strstr(condition, input);
+    if (tmp == NULL) {
+        return 0;
+    }
+    PARAM_LOGV("CheckMatchSubCondition Condition: '%s' content: '%s' length %d", condition, input, length);
+    if (((int)strlen(tmp) <= length) || (tmp[length] != '=')) {
+        return 0;
+    }
+    // for condition: parameter = 1
+    if (tmp == condition) {
+        return 1;
+    }
+    // for condition: parameter1 = 1 && parameter2 = 1
+    if (*(tmp - 1) == ' ') {
         return 1;
     }
     return 0;
diff --git a/services/param/trigger/trigger_manager.c b/services/param/trigger/trigger_manager.c
index 3f7d61fe5c5b280ea74726be07a679f7968846bf..982a983dfc020dedcf5cb6d5c809d73d73208039 100644
--- a/services/param/trigger/trigger_manager.c
+++ b/services/param/trigger/trigger_manager.c
@@ -448,8 +448,7 @@ int32_t CheckAndMarkTrigger_(const TriggerWorkSpace *workSpace, int type, const
             trigger = head->nextTrigger(head, trigger);
             continue;
         }
-        const char *tmp = strstr(head->getCondition(trigger), name);
-        if (tmp != NULL && strncmp(tmp + strlen(name), "=", 1) == 0) {
+        if (CheckMatchSubCondition(head->getCondition(trigger), name, strlen(name)) == 1) {
             TRIGGER_SET_FLAG(trigger, TRIGGER_FLAGS_RELATED);
             ret = 1;
         }