diff --git a/app/controllers/item_banks_controller.rb b/app/controllers/item_banks_controller.rb
new file mode 100644
index 000000000..091163821
--- /dev/null
+++ b/app/controllers/item_banks_controller.rb
@@ -0,0 +1,4 @@
+class LibrariesController < ApplicationController
+
+
+end
\ No newline at end of file
diff --git a/app/models/curriculum.rb b/app/models/curriculum.rb
index 6c25a5883..0b78814bc 100644
--- a/app/models/curriculum.rb
+++ b/app/models/curriculum.rb
@@ -1,2 +1,4 @@
 class Curriculum < ApplicationRecord
+  belongs_to :curriculum_direction
+  has_many :knowledge_points, dependent: :destroy
 end
diff --git a/app/models/curriculum_direction.rb b/app/models/curriculum_direction.rb
new file mode 100644
index 000000000..1c9211559
--- /dev/null
+++ b/app/models/curriculum_direction.rb
@@ -0,0 +1,4 @@
+class CurriculumDirection < ApplicationRecord
+  has_many :curriculums
+  has_many :knowledge_points
+end
diff --git a/app/models/item_analysis.rb b/app/models/item_analysis.rb
new file mode 100644
index 000000000..8f6e71302
--- /dev/null
+++ b/app/models/item_analysis.rb
@@ -0,0 +1,3 @@
+class ItemAnalysis < ApplicationRecord
+  belongs_to :item_bank
+end
diff --git a/app/models/item_bank.rb b/app/models/item_bank.rb
new file mode 100644
index 000000000..32c349e34
--- /dev/null
+++ b/app/models/item_bank.rb
@@ -0,0 +1,13 @@
+class ItemBank < ApplicationRecord
+  # difficulty:  1 简单  2 适中  3 困难
+  # item_type:  0 单选  1 多选  2 判断  3 填空  4 简答  5 实训 6 编程
+  enum item_type: { SINGLE: 0, MULTIPLE: 1, JUDGMENT: 2, COMPLETION: 3, SUBJECTIVE: 4, PRACTICAL: 5, PROGRAM: 6 }
+
+  belongs_to :curriculum
+  belongs_to :curriculum_direction
+  belongs_to :user
+
+  has_one :item_analysis, dependent: :destroy
+  has_many :item_choices, dependent: :destroy
+  has_many :item_baskets, dependent: :destroy
+end
diff --git a/app/models/item_basket.rb b/app/models/item_basket.rb
new file mode 100644
index 000000000..d736d9bc0
--- /dev/null
+++ b/app/models/item_basket.rb
@@ -0,0 +1,4 @@
+class ItemBasket < ApplicationRecord
+  belongs_to :item_bank
+  belongs_to :user
+end
diff --git a/app/models/item_choice.rb b/app/models/item_choice.rb
new file mode 100644
index 000000000..ccc35698e
--- /dev/null
+++ b/app/models/item_choice.rb
@@ -0,0 +1,3 @@
+class ItemChoice < ApplicationRecord
+  belongs_to :item_bank
+end
diff --git a/app/models/knowledge_point.rb b/app/models/knowledge_point.rb
index f5abbb54e..3d75b66a1 100644
--- a/app/models/knowledge_point.rb
+++ b/app/models/knowledge_point.rb
@@ -1,3 +1,5 @@
 class KnowledgePoint < ApplicationRecord
+  belongs_to :curriculum_direction
   belongs_to :curriculum
+  has_many :knowledge_point_containers, dependent: :destroy
 end
diff --git a/config/routes.rb b/config/routes.rb
index 2ef60b45f..23e13e3d2 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -48,7 +48,9 @@ Rails.application.routes.draw do
       end
     end
 
+    resources :item_banks do
 
+    end
     
 
     resources :hacks, path: :problems,  param: :identifier do
diff --git a/db/migrate/20191218070922_create_curriculum_directions.rb b/db/migrate/20191218070922_create_curriculum_directions.rb
new file mode 100644
index 000000000..9203aa435
--- /dev/null
+++ b/db/migrate/20191218070922_create_curriculum_directions.rb
@@ -0,0 +1,9 @@
+class CreateCurriculumDirections < ActiveRecord::Migration[5.2]
+  def change
+    create_table :curriculum_directions do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20191217100300_create_curriculums.rb b/db/migrate/20191218071017_create_curriculums.rb
similarity index 75%
rename from db/migrate/20191217100300_create_curriculums.rb
rename to db/migrate/20191218071017_create_curriculums.rb
index 10eb516d5..885f2a676 100644
--- a/db/migrate/20191217100300_create_curriculums.rb
+++ b/db/migrate/20191218071017_create_curriculums.rb
@@ -2,6 +2,7 @@ class CreateCurriculums < ActiveRecord::Migration[5.2]
   def change
     create_table :curriculums do |t|
       t.string :name
+      t.references :curriculum_direction, index: true
 
       t.timestamps
     end
diff --git a/db/migrate/20191217102106_create_knowledge_points.rb b/db/migrate/20191218071111_create_knowledge_points.rb
similarity index 63%
rename from db/migrate/20191217102106_create_knowledge_points.rb
rename to db/migrate/20191218071111_create_knowledge_points.rb
index 7e0220c81..2f748d266 100644
--- a/db/migrate/20191217102106_create_knowledge_points.rb
+++ b/db/migrate/20191218071111_create_knowledge_points.rb
@@ -1,8 +1,9 @@
 class CreateKnowledgePoints < ActiveRecord::Migration[5.2]
   def change
     create_table :knowledge_points do |t|
-      t.references :curriculum, foreign_key: true
       t.string :name
+      t.references :curriculum_direction, index: true
+      t.references :curriculum, index: true
 
       t.timestamps
     end
diff --git a/db/migrate/20191217102414_create_knowledge_point_containers.rb b/db/migrate/20191218071343_create_knowledge_point_containers.rb
similarity index 57%
rename from db/migrate/20191217102414_create_knowledge_point_containers.rb
rename to db/migrate/20191218071343_create_knowledge_point_containers.rb
index 32f92f3e5..0b6944ea7 100644
--- a/db/migrate/20191217102414_create_knowledge_point_containers.rb
+++ b/db/migrate/20191218071343_create_knowledge_point_containers.rb
@@ -1,11 +1,12 @@
 class CreateKnowledgePointContainers < ActiveRecord::Migration[5.2]
   def change
     create_table :knowledge_point_containers do |t|
+      t.references :knowledge_point
       t.integer :container_id
       t.string :container_type
-      t.references :knowledge_point, foreign_key: true
 
       t.timestamps
     end
+    add_index :knowledge_point_containers, [:knowledge_point_id, :container_id, :container_type], name: "container_index", unique: true
   end
 end
diff --git a/db/migrate/20191218071553_create_item_banks.rb b/db/migrate/20191218071553_create_item_banks.rb
new file mode 100644
index 000000000..848edf236
--- /dev/null
+++ b/db/migrate/20191218071553_create_item_banks.rb
@@ -0,0 +1,16 @@
+class CreateItemBanks < ActiveRecord::Migration[5.2]
+  def change
+    create_table :item_banks do |t|
+      t.text :name
+      t.references :curriculum, index: true
+      t.references :curriculum_direction, index: true
+      t.integer :item_type
+      t.integer :difficulty
+      t.references :user, index: true
+      t.boolean :public
+      t.integer :quotes
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20191218072457_create_item_analyses.rb b/db/migrate/20191218072457_create_item_analyses.rb
new file mode 100644
index 000000000..ab361822e
--- /dev/null
+++ b/db/migrate/20191218072457_create_item_analyses.rb
@@ -0,0 +1,10 @@
+class CreateItemAnalyses < ActiveRecord::Migration[5.2]
+  def change
+    create_table :item_analyses do |t|
+      t.references :item_bank, index: true
+      t.text :analysis
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20191218072611_create_item_choices.rb b/db/migrate/20191218072611_create_item_choices.rb
new file mode 100644
index 000000000..313897be3
--- /dev/null
+++ b/db/migrate/20191218072611_create_item_choices.rb
@@ -0,0 +1,11 @@
+class CreateItemChoices < ActiveRecord::Migration[5.2]
+  def change
+    create_table :item_choices do |t|
+      t.references :item_bank, index: true
+      t.text :choice_text
+      t.boolean :is_answer
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20191218072647_create_item_baskets.rb b/db/migrate/20191218072647_create_item_baskets.rb
new file mode 100644
index 000000000..53689d717
--- /dev/null
+++ b/db/migrate/20191218072647_create_item_baskets.rb
@@ -0,0 +1,10 @@
+class CreateItemBaskets < ActiveRecord::Migration[5.2]
+  def change
+    create_table :item_baskets do |t|
+      t.references :item_bank, index: true
+      t.references :user, index: true
+
+      t.timestamps
+    end
+  end
+end
diff --git a/spec/models/curriculum_direction_spec.rb b/spec/models/curriculum_direction_spec.rb
new file mode 100644
index 000000000..40cab64ca
--- /dev/null
+++ b/spec/models/curriculum_direction_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe CurriculumDirection, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end
diff --git a/spec/models/item_analysis_spec.rb b/spec/models/item_analysis_spec.rb
new file mode 100644
index 000000000..155169289
--- /dev/null
+++ b/spec/models/item_analysis_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ItemAnalysis, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end
diff --git a/spec/models/item_bank_spec.rb b/spec/models/item_bank_spec.rb
new file mode 100644
index 000000000..a8cc2cffb
--- /dev/null
+++ b/spec/models/item_bank_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ItemBank, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end
diff --git a/spec/models/item_basket_spec.rb b/spec/models/item_basket_spec.rb
new file mode 100644
index 000000000..4cdf7e0ea
--- /dev/null
+++ b/spec/models/item_basket_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ItemBasket, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end
diff --git a/spec/models/item_choice_spec.rb b/spec/models/item_choice_spec.rb
new file mode 100644
index 000000000..ff22a255e
--- /dev/null
+++ b/spec/models/item_choice_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ItemChoice, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end