diff --git a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
index ea80068e49d4..5d5b0ca6ae63 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
@@ -646,7 +646,9 @@ CREATE TABLE `t_ds_workflow_instance` (
   `restart_time` datetime DEFAULT NULL COMMENT 'workflow instance restart time',
   PRIMARY KEY (`id`),
   KEY `workflow_instance_index` (`workflow_definition_code`,`id`) USING BTREE,
-  KEY `start_time_index` (`start_time`,`end_time`) USING BTREE
+  KEY `start_time_index` (`start_time`,`end_time`) USING BTREE,
+  KEY `idx_project_code_start_time` (`project_code`, `start_time` DESC, `id` DESC) USING BTREE,
+  KEY `idx_workflow_definition_code_start_time` (`workflow_definition_code`, `start_time` DESC) USING BTREE
 ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COLLATE = utf8_bin;
 
 -- ----------------------------
@@ -937,7 +939,9 @@ CREATE TABLE `t_ds_task_instance` (
   `memory_max` int(11) DEFAULT '-1' NOT NULL COMMENT 'MemoryMax(MB): -1:Infinity',
   PRIMARY KEY (`id`),
   KEY `workflow_instance_id` (`workflow_instance_id`) USING BTREE,
-  KEY `idx_code_version` (`task_code`, `task_definition_version`) USING BTREE
+  KEY `idx_code_version` (`task_code`, `task_definition_version`) USING BTREE,
+  KEY `idx_project_code_submit_time` (`project_code`, `submit_time` DESC) USING BTREE,
+  KEY `idx_project_code_start_time` (`project_code`, `start_time` DESC) USING BTREE
 ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COLLATE = utf8_bin;
 
 -- ----------------------------
diff --git a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_postgresql.sql b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_postgresql.sql
index afe1b957cde9..c5b0a27cd1c9 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_postgresql.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_postgresql.sql
@@ -589,6 +589,8 @@ CREATE TABLE t_ds_workflow_instance (
 
 create index workflow_instance_index on t_ds_workflow_instance (workflow_definition_code,id);
 create index start_time_index on t_ds_workflow_instance (start_time,end_time);
+create index idx_project_code_start_time on t_ds_workflow_instance (project_code, start_time DESC, id DESC);
+create index idx_workflow_definition_code_start_time on t_ds_workflow_instance (workflow_definition_code, start_time DESC);
 
 --
 -- Table structure for table t_ds_project
@@ -859,6 +861,9 @@ CREATE TABLE t_ds_task_instance (
 ) ;
 
 create index idx_task_instance_code_version on t_ds_task_instance (task_code, task_definition_version);
+create index idx_project_code_submit_time on t_ds_task_instance (project_code, submit_time DESC);
+create index idx_workflow_instance_id on t_ds_task_instance (workflow_instance_id);
+create index idx_project_code_start_time on t_ds_task_instance (project_code, start_time DESC);
 
 --
 -- Table structure for t_ds_task_instance_context
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/mysql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/mysql/dolphinscheduler_ddl.sql
index 3a9fff25efe2..7df6c1209790 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/mysql/dolphinscheduler_ddl.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/mysql/dolphinscheduler_ddl.sql
@@ -36,3 +36,8 @@ CREATE TABLE IF NOT EXISTS `t_ds_serial_command` (
    KEY `idx_workflow_instance_id` (`workflow_instance_id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COLLATE = utf8_bin;
 
+-- Add indexes for workflow instance and task instance
+ALTER TABLE `t_ds_workflow_instance` ADD INDEX `idx_project_code_start_time` (`project_code`, `start_time` DESC, `id` DESC) USING BTREE;
+ALTER TABLE `t_ds_workflow_instance` ADD INDEX `idx_workflow_definition_code_start_time` (`workflow_definition_code`, `start_time` DESC) USING BTREE;
+ALTER TABLE `t_ds_task_instance` ADD INDEX `idx_project_code_submit_time` (`project_code`, `submit_time` DESC) USING BTREE;
+ALTER TABLE `t_ds_task_instance` ADD INDEX `idx_project_code_start_time` (`project_code`, `start_time` DESC) USING BTREE;
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/postgresql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/postgresql/dolphinscheduler_ddl.sql
index 5d2beea9a028..7b2e2fec4237 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/postgresql/dolphinscheduler_ddl.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/3.4.0_schema/postgresql/dolphinscheduler_ddl.sql
@@ -43,3 +43,9 @@ COMMENT ON COLUMN "t_ds_serial_command"."state" IS 'state of the serial queue: 0
 COMMENT ON COLUMN "t_ds_serial_command"."command" IS 'command json';
 COMMENT ON COLUMN "t_ds_serial_command"."create_time" IS 'create time';
 COMMENT ON COLUMN "t_ds_serial_command"."update_time" IS 'update time';
+
+-- Add indexes for workflow instance and task instance
+CREATE INDEX idx_project_code_start_time ON t_ds_workflow_instance (project_code, start_time DESC, id DESC);
+CREATE INDEX idx_workflow_definition_code_start_time ON t_ds_workflow_instance (workflow_definition_code, start_time DESC);
+CREATE INDEX idx_project_code_submit_time ON t_ds_task_instance (project_code, submit_time DESC);
+CREATE INDEX idx_project_code_start_time ON t_ds_task_instance (project_code, start_time DESC);