diff --git a/mysql/oa_project_child.sql b/mysql/oa_project_child.sql
new file mode 100644
index 0000000..dfb119e
--- /dev/null
+++ b/mysql/oa_project_child.sql
@@ -0,0 +1,23 @@
+USE organize_oa;
+
+create table oa_project_child
+(
+    id            bigint unsigned auto_increment comment '项目id'
+        primary key,
+    project_id    bigint unsigned                        not null comment '主要项目id',
+    name          varchar(100)                           not null comment '项目名称',
+    principal_id  bigint unsigned                        not null comment '项目负责人',
+    description   json                                   null comment '项目描述（技术选择，描述）',
+    cycle         int unsigned                           not null comment '项目周期',
+    work_load     int unsigned default '1'               not null comment '工作量（人天）',
+    files         json                                   null comment '子项目文件',
+    complete_time date                                   null comment '完成时间',
+    created_at    timestamp    default CURRENT_TIMESTAMP not null comment '创建时间',
+    updated_at    timestamp                              null comment '更新时间',
+    is_delete     tinyint(1)   default 0                 not null comment '项目是否删除',
+    constraint oa_project_child_oa_user_id_fk
+        foreign key (principal_id) references oa_user (id)
+            on update cascade
+)
+    comment '项目表';
+
diff --git a/mysql/oa_project_modules.sql b/mysql/oa_project_modules.sql
new file mode 100644
index 0000000..98a0d73
--- /dev/null
+++ b/mysql/oa_project_modules.sql
@@ -0,0 +1,21 @@
+USE organize_oa;
+
+create table oa_project_modules
+(
+    id               bigint unsigned auto_increment comment '模块id'
+        primary key,
+    project_child_id bigint unsigned                        not null comment '子项目id',
+    name             varchar(100)                           not null comment '模块名称',
+    principal_id     bigint unsigned                        not null comment '模块负责人',
+    description      json                                   null comment '项目描述（技术选择，描述）',
+    work_load        int unsigned default '1'               not null comment '工作量（人天）',
+    complete_time    datetime                               null comment '完成时间',
+    created_at       timestamp    default CURRENT_TIMESTAMP not null comment '创建时间',
+    updated_at       timestamp                              null comment '更新时间',
+    is_delete        tinyint(1)   default 0                 not null comment '项目是否删除',
+    constraint oa_project_modules_oa_user_id_fk
+        foreign key (principal_id) references oa_user (id)
+            on update cascade
+)
+    comment '模块表';
+