diff --git a/models/entity/category.go b/models/entity/category_basic.go
similarity index 79%
rename from models/entity/category.go
rename to models/entity/category_basic.go
index d86a17d..2104de5 100644
--- a/models/entity/category.go
+++ b/models/entity/category_basic.go
@@ -3,13 +3,13 @@ package entity
 import "online_code/common/types"
 
 // Category 分类表
-type Category struct {
+type CategoryBasic struct {
 	types.BaseDbModel
 	Identity string `json:"identity" gorm:"column:identity;type:varchar(36);comment:'分类的唯一标识'"`
 	Name     string `json:"name" gorm:"column:name;type:varchar(100);comment:'分类名称'" `
 	ParentId int    `json:"parent_id" gorm:"column:parent_id;type:int(11);comment:'父级ID'" `
 }
 
-func (table *Category) TableName() string {
-	return "category"
+func (table *CategoryBasic) TableName() string {
+	return "category_basic"
 }
diff --git a/models/entity/problem.go b/models/entity/problem_basic.go
similarity index 95%
rename from models/entity/problem.go
rename to models/entity/problem_basic.go
index 40183e0..9a8b66d 100644
--- a/models/entity/problem.go
+++ b/models/entity/problem_basic.go
@@ -3,7 +3,7 @@ package entity
 import "online_code/common/types"
 
 // Problem 问题表
-type Problem struct {
+type ProblemBasic struct {
 	types.BaseDbModel
 	Identity          string             `json:"identity" gorm:"column:identity;type:varchar(36);comment:'问题表的唯一标识'" `                 // 问题表的唯一标识
 	ProblemCategories []*ProblemCategory `json:"problem_categories" gorm:"foreignKey:problem_id;references:id;comment:'关联问题分类表'" `     // 关联问题分类表
@@ -16,6 +16,6 @@ type Problem struct {
 	SubmitNum         int64              `json:"submit_num" gorm:"column:submit_num;type:int(11);comment:'提交次数'" `                     // 提交次数
 }
 
-func (table *Problem) TableName() string {
+func (table *ProblemBasic) TableName() string {
 	return "problem_basic"
 }
diff --git a/models/entity/problem_category.go b/models/entity/problem_category.go
index 6b758b5..78173d8 100644
--- a/models/entity/problem_category.go
+++ b/models/entity/problem_category.go
@@ -7,9 +7,9 @@ import (
 // ProblemCategory 问题分类关联表
 type ProblemCategory struct {
 	types.BaseDbModel
-	ProblemId     uint      `json:"problem_id" gorm:"column:problem_id;type:int(11);comment:'问题的ID'" `                // 问题的ID
-	CategoryId    uint      `json:"category_id" gorm:"column:category_id;type:int(11);comment:'分类的ID'" `              // 分类的ID
-	CategoryBasic *Category `json:"category_basic" gorm:"foreignKey:id;references:category_id;comment:'关联分类的基础信息表'" ` // 关联分类的基础信息表
+	ProblemId     uint           `json:"problem_id" gorm:"column:problem_id;type:int(11);comment:'问题的ID'" `                // 问题的ID
+	CategoryId    uint           `json:"category_id" gorm:"column:category_id;type:int(11);comment:'分类的ID'" `              // 分类的ID
+	CategoryBasic *CategoryBasic `json:"category_basic" gorm:"foreignKey:id;references:category_id;comment:'关联分类的基础信息表'" ` // 关联分类的基础信息表
 }
 
 func (table *ProblemCategory) TableName() string {
diff --git a/models/entity/submit.go b/models/entity/submit.go
deleted file mode 100644
index d58ea43..0000000
--- a/models/entity/submit.go
+++ /dev/null
@@ -1,16 +0,0 @@
-package entity
-
-// Submit 提交表
-type Submit struct {
-	Identity        string   `json:"identity" gorm:"column:identity;type:varchar(36);comment:'用户唯一标识'" `                      // 唯一标识
-	ProblemIdentity string   `json:"problem_identity" gorm:"column:problem_identity;type:varchar(36);comment:'问题表的唯一标识'" `    // 问题表的唯一标识
-	ProblemBasic    *Problem `json:"problem_basic" gorm:"foreignKey:identity;references:problem_identity;comment:'关联问题基础表'" ` // 关联问题基础表
-	UserIdentity    string   `json:"user_identity" gorm:"column:user_identity;type:varchar(36);comment:'用户表的唯一标识'" `          // 用户表的唯一标识
-	UserBasic       *User    `json:"user_basic" gorm:"foreignKey:identity;references:user_identity;comment:'联用户基础表'" `        // 关联用户基础表
-	Path            string   `json:"path" gorm:"column:path;type:varchar(255);comment:'代码存放路径'" `                             // 代码存放路径
-	Status          int      `json:"status" gorm:"column:status;type:tinyint(1);comment:'状态'" `                               // 【-1-待判断，1-答案正确，2-答案错误，3-运行超时，4-运行超内存， 5-编译错误】
-}
-
-func (table *Submit) TableName() string {
-	return "submit"
-}
diff --git a/models/entity/submit_basic.go b/models/entity/submit_basic.go
new file mode 100644
index 0000000..7e053a1
--- /dev/null
+++ b/models/entity/submit_basic.go
@@ -0,0 +1,16 @@
+package entity
+
+// Submit 提交表
+type SubmitBasic struct {
+	Identity        string        `json:"identity" gorm:"column:identity;type:varchar(36);comment:'用户唯一标识'" `                      // 唯一标识
+	ProblemIdentity string        `json:"problem_identity" gorm:"column:problem_identity;type:varchar(36);comment:'问题表的唯一标识'" `    // 问题表的唯一标识
+	ProblemBasic    *ProblemBasic `json:"problem_basic" gorm:"foreignKey:identity;references:problem_identity;comment:'关联问题基础表'" ` // 关联问题基础表
+	UserIdentity    string        `json:"user_identity" gorm:"column:user_identity;type:varchar(36);comment:'用户表的唯一标识'" `          // 用户表的唯一标识
+	UserBasic       *UserBasic    `json:"user_basic" gorm:"foreignKey:identity;references:user_identity;comment:'联用户基础表'" `        // 关联用户基础表
+	Path            string        `json:"path" gorm:"column:path;type:varchar(255);comment:'代码存放路径'" `                             // 代码存放路径
+	Status          int           `json:"status" gorm:"column:status;type:tinyint(1);comment:'状态'" `                               // 【-1-待判断，1-答案正确，2-答案错误，3-运行超时，4-运行超内存， 5-编译错误】
+}
+
+func (table *SubmitBasic) TableName() string {
+	return "submit_basic"
+}
diff --git a/models/entity/user.go b/models/entity/user_basic.go
similarity index 91%
rename from models/entity/user.go
rename to models/entity/user_basic.go
index 516c04f..960ad9b 100644
--- a/models/entity/user.go
+++ b/models/entity/user_basic.go
@@ -2,7 +2,7 @@ package entity
 
 import "online_code/common/types"
 
-type User struct {
+type UserBasic struct {
 	types.BaseDbModel
 	Identity  string `json:"identity"   gorm:"column:identity;type:varchar(36);comment:'用户唯一标识'"`
 	Name      string `json:"name"       gorm:"column:name;type:varchar(100);not null;comment:'用户名'"`
@@ -14,6 +14,6 @@ type User struct {
 	IsAdmin   int    `json:"is_admin"   gorm:"column:is_admin;type:tinyint(1);comment:'是否是管理员【0-否，1-是】'"`
 }
 
-func (table *User) TableName() string {
-	return "user"
+func (table *UserBasic) TableName() string {
+	return "user_basic"
 }
diff --git a/models/param/problem.go b/models/param/problem.go
index 872d1b8..d04caf2 100644
--- a/models/param/problem.go
+++ b/models/param/problem.go
@@ -2,5 +2,6 @@ package param
 
 type GetProblemList struct {
 	page
-	Keyword string `json:"keyword" form:"keyword"` // 问题关键字
+	Keyword          string `json:"keyword" form:"keyword"`                     // 问题关键字
+	CategoryIdentity string `json:"category_identity" form:"category_identity"` // 问题分类标识
 }
diff --git a/repository/problem.go b/repository/problem.go
index f9174de..f4bffd1 100644
--- a/repository/problem.go
+++ b/repository/problem.go
@@ -19,6 +19,10 @@ func (problemService) GetList(p param.GetProblemList) (records entity.Problem, c
 	if p.Keyword != "" {
 		sel.Where("title LIKE ? OR content like ?", "%"+p.Keyword+"%", "%"+p.Keyword+"%")
 	}
+	if p.CategoryIdentity != "" {
+		sel.Joins("RIGHT JOINN problem_category pc on pc.problem_id = problem.id").
+			Where("pc.category_id= (SELECT cb.id FROM category cb WHERE cb.identity = ?)", p.CategoryIdentity)
+	}
 
 	err = sel.Order("updated_at DESC").Find(&records).Offset(-1).Limit(-1).Count(&count).Error
 	return