diff --git a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_information_leakage_prevention.go b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_information_leakage_prevention.go
index 0fa556c050..73b9bb93c3 100644
--- a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_information_leakage_prevention.go
+++ b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_information_leakage_prevention.go
@@ -172,6 +172,8 @@ func resourceRuleRead(_ context.Context, d *schema.ResourceData, meta interface{
 
 	getResp, err := client.Request("GET", getPath, &getOpt)
 	if err != nil {
+		// If the information leakage prevention rule does not exist, the response HTTP status code of
+		// the details API is 404.
 		return common.CheckDeletedDiag(d, err, "error retrieving WAF information leakage prevention rule")
 	}
 
@@ -253,7 +255,9 @@ func resourceRuleDelete(_ context.Context, d *schema.ResourceData, meta interfac
 
 	_, err = client.Request("DELETE", deletePath, &deleteOpt)
 	if err != nil {
-		return diag.Errorf("error deleting WAF information leakage prevention rule: %s", err)
+		// If the information leakage prevention rule does not exist, the response HTTP status code of
+		// the deletion API is 404.
+		return common.CheckDeletedDiag(d, err, "error deleting WAF information leakage prevention rule")
 	}
 	return nil
 }
diff --git a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_known_attack_source.go b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_known_attack_source.go
index 84c9f12a45..29a06e3325 100644
--- a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_known_attack_source.go
+++ b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_known_attack_source.go
@@ -152,6 +152,7 @@ func resourceRuleKnownAttackRead(_ context.Context, d *schema.ResourceData, meta
 
 	getResp, err := client.Request("GET", getPath, &getOpt)
 	if err != nil {
+		// If the known attack source rule does not exist, the response HTTP status code of the details API is 404.
 		return common.CheckDeletedDiag(d, err, "error retrieving WAF known attack source rule")
 	}
 
@@ -232,7 +233,8 @@ func resourceRuleKnownAttackDelete(_ context.Context, d *schema.ResourceData, me
 
 	_, err = client.Request("DELETE", deletePath, &deleteRuleKnownAttackOpt)
 	if err != nil {
-		return diag.Errorf("error deleting WAF known attack source rule: %s", err)
+		// If the known attack source rule does not exist, the response HTTP status code of the deletion API is 404.
+		return common.CheckDeletedDiag(d, err, "error deleting WAF known attack source rule")
 	}
 
 	return nil
diff --git a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_precise_protection.go b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_precise_protection.go
index bcda09ad0b..35241d1b26 100644
--- a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_precise_protection.go
+++ b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_precise_protection.go
@@ -355,6 +355,7 @@ func resourceRulePreciseProtectionRead(_ context.Context, d *schema.ResourceData
 	getRuleResp, err := preciseProtectionClient.Request("GET", getRulePath, &getRuleOpt)
 
 	if err != nil {
+		// If the rule does not exist, the response HTTP status code of the details API is 404.
 		return common.CheckDeletedDiag(d, err, "error retrieving RulePreciseProtection")
 	}
 
@@ -497,7 +498,8 @@ func resourceRulePreciseProtectionDelete(_ context.Context, d *schema.ResourceDa
 	}
 	_, err = preciseProtectionClient.Request("DELETE", deletePath, &deleteOpt)
 	if err != nil {
-		return diag.Errorf("error deleting RulePreciseProtection: %s", err)
+		// If the rule does not exist, the response HTTP status code of the deletion API is 404.
+		return common.CheckDeletedDiag(d, err, "error deleting RulePreciseProtection")
 	}
 	return nil
 }
diff --git a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_web_tamper_protection.go b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_web_tamper_protection.go
index 71b36400a2..748ed0889e 100644
--- a/huaweicloud/services/waf/resource_huaweicloud_waf_rule_web_tamper_protection.go
+++ b/huaweicloud/services/waf/resource_huaweicloud_waf_rule_web_tamper_protection.go
@@ -131,6 +131,7 @@ func resourceWafRuleWebTamperProtectionRead(_ context.Context, d *schema.Resourc
 	epsID := cfg.GetEnterpriseProjectID(d)
 	n, err := rules.GetWithEpsID(wafClient, policyID, d.Id(), epsID).Extract()
 	if err != nil {
+		// If the web tamper protection rule does not exist, the response HTTP status code of the details API is 404.
 		return common.CheckDeletedDiag(d, err, "error retrieving WAF web tamper protection rule")
 	}
 
@@ -156,7 +157,8 @@ func resourceWafRuleWebTamperProtectionDelete(_ context.Context, d *schema.Resou
 	epsID := cfg.GetEnterpriseProjectID(d)
 	err = rules.DeleteWithEpsID(wafClient, policyID, d.Id(), epsID).ExtractErr()
 	if err != nil {
-		return diag.Errorf("error deleting WAF web tamper protection rule: %s", err)
+		// If the web tamper protection rule does not exist, the response HTTP status code of the deletion API is 404.
+		return common.CheckDeletedDiag(d, err, "error deleting WAF web tamper protection rule")
 	}
 	return nil
 }