diff --git a/codes/go/chapter_tree/binary_search_tree.go b/codes/go/chapter_tree/binary_search_tree.go
index c21dc14..26eb94d 100644
--- a/codes/go/chapter_tree/binary_search_tree.go
+++ b/codes/go/chapter_tree/binary_search_tree.go
@@ -1,5 +1,5 @@
 // File: binary_search_tree.go
-// Created Time: 2022-11-25
+// Created Time: 2022-11-26
 // Author: Reanon (793584285@qq.com)
 
 package chapter_tree
@@ -14,7 +14,166 @@ type BinarySearchTree struct {
 }
 
 func NewBinarySearchTree(nums []int) *BinarySearchTree {
-	// 排序数组
+	// sorting array
 	sort.Ints(nums)
-	return nil
+	root := buildBinarySearchTree(nums, 0, len(nums)-1)
+	return &BinarySearchTree{
+		root: root,
+	}
+}
+
+// GetRoot Get the root node of binary search tree
+func (bst *BinarySearchTree) GetRoot() *TreeNode {
+	return bst.root
+}
+
+// GetMin Get node with the min value
+func (bst *BinarySearchTree) GetMin(node *TreeNode) *TreeNode {
+	if node == nil {
+		return node
+	}
+	// 循环访问左子结点，直到叶结点时为最小结点，跳出
+	for node.Left != nil {
+		node = node.Left
+	}
+	return node
+}
+
+// GetInorderNext Get node inorder next
+func (bst *BinarySearchTree) GetInorderNext(node *TreeNode) *TreeNode {
+	if node == nil || node.Right == nil {
+		return node
+	}
+	node = node.Right
+	// 循环访问左子结点，直到叶结点时为最小结点，跳出
+	for node.Left != nil {
+		node = node.Left
+	}
+	return node
+}
+
+// Search node of binary search tree
+func (bst *BinarySearchTree) Search(num int) *TreeNode {
+	node := bst.root
+	// 循环查找，越过叶结点后跳出
+	for node != nil {
+		if node.Val < num {
+			// 目标结点在 root 的右子树中
+			node = node.Right
+		} else if node.Val > num {
+			// 目标结点在 root 的左子树中
+			node = node.Left
+		} else {
+			// 找到目标结点，跳出循环
+			break
+		}
+	}
+	// 返回目标结点
+	return node
+}
+
+// Insert node of binary search tree
+func (bst *BinarySearchTree) Insert(num int) *TreeNode {
+	cur := bst.root
+	// 若树为空，直接提前返回
+	if cur == nil {
+		return nil
+	}
+	// 待插入结点之前的结点位置
+	var prev *TreeNode = nil
+	// 循环查找，越过叶结点后跳出
+	for cur != nil {
+		if cur.Val == num {
+			return nil
+		}
+		prev = cur
+		if cur.Val < num {
+			cur = cur.Right
+		} else {
+			cur = cur.Left
+		}
+	}
+	// 插入结点
+	node := NewTreeNode(num)
+	if prev.Val < num {
+		prev.Right = node
+	} else {
+		prev.Left = node
+	}
+	return cur
+}
+
+// Remove node of binary search tree
+func (bst *BinarySearchTree) Remove(num int) *TreeNode {
+	cur := bst.root
+	// 若树为空，直接提前返回
+	if cur == nil {
+		return nil
+	}
+	// 待删除结点之前的结点位置
+	var prev *TreeNode = nil
+	// 循环查找，越过叶结点后跳出
+	for cur != nil {
+		if cur.Val == num {
+			break
+		}
+		prev = cur
+		// 待删除结点在右子树中
+		if cur.Val < num {
+			cur = cur.Right
+		} else {
+			// 待删除结点在左子树中
+			cur = cur.Left
+		}
+	}
+	// 若无待删除结点，则直接返回
+	if cur == nil {
+		return nil
+	}
+	// 子结点数为 0 或 1
+	if cur.Left == nil || cur.Right == nil {
+		var child *TreeNode = nil
+		// 取出待删除结点的子结点
+		if cur.Left != nil {
+			child = cur.Left
+		} else {
+			child = cur.Right
+		}
+		// 将子结点替换为待删除结点
+		if prev.Left == cur {
+			prev.Left = child
+		} else {
+			prev.Right = child
+		}
+
+	} else { // 子结点数为 2
+		// 获取中序遍历中待删除结点 cur 的下一个结点
+		next := bst.GetInorderNext(cur)
+		temp := next.Val
+		// 递归删除结点 next
+		bst.Remove(next.Val)
+		// 将 next 的值复制给 cur
+		cur.Val = temp
+	}
+	// TODO: add error handler, don't return node
+	return cur
+}
+
+// buildBinarySearchTree Build a binary search tree from array.
+func buildBinarySearchTree(nums []int, left, right int) *TreeNode {
+	if left > right {
+		return nil
+	}
+	// 将数组中间结点作为根结点
+	middle := left + (right-left)>>1
+	root := NewTreeNode(nums[middle])
+	// 递归构建左子树和右子树
+	root.Left = buildBinarySearchTree(nums, left, middle-1)
+	root.Right = buildBinarySearchTree(nums, middle+1, right)
+	return root
+}
+
+// Print binary search tree
+func (bst *BinarySearchTree) Print() {
+	PrintTree(bst.root)
 }
diff --git a/codes/go/chapter_tree/binary_search_tree_test.go b/codes/go/chapter_tree/binary_search_tree_test.go
new file mode 100644
index 0000000..45d59bd
--- /dev/null
+++ b/codes/go/chapter_tree/binary_search_tree_test.go
@@ -0,0 +1,44 @@
+// File: binary_search_tree_test.go
+// Created Time: 2022-11-26
+// Author: Reanon (793584285@qq.com)
+
+package chapter_tree
+
+import "testing"
+
+func TestBinarySearchTree(t *testing.T) {
+	nums := []int{8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 6, 7}
+	bst := NewBinarySearchTree(nums)
+	t.Log("初始化的二叉树为: ")
+	bst.Print()
+
+	// 获取根结点
+	node := bst.GetRoot()
+	t.Log("二叉树的根结点为: ", node.Val)
+	// 获取最小的结点
+	node = bst.GetMin(bst.GetRoot())
+	t.Log("二叉树的最小结点为: ", node.Val)
+
+	// 查找结点
+	node = bst.Search(5)
+	t.Log("查找到的结点对象为", node, "，结点值 = ", node.Val)
+
+	// 插入结点
+	node = bst.Insert(16)
+	t.Log("插入结点后 16 的二叉树为: ")
+	bst.Print()
+
+	// 删除结点
+	bst.Remove(1)
+	t.Log("删除结点 1 后的二叉树为: ")
+	bst.Print()
+	bst.Remove(12)
+	t.Log("删除结点 12 后的二叉树为: ")
+	bst.Print()
+	bst.Remove(2)
+	t.Log("删除结点 2 后的二叉树为: ")
+	bst.Print()
+	bst.Remove(4)
+	t.Log("删除结点 4 后的二叉树为: ")
+	bst.Print()
+}
diff --git a/docs/chapter_tree/binary_search_tree.md b/docs/chapter_tree/binary_search_tree.md
index a59493b..a9514ec 100644
--- a/docs/chapter_tree/binary_search_tree.md
+++ b/docs/chapter_tree/binary_search_tree.md
@@ -63,11 +63,11 @@ comments: true
 
 给定一个待插入元素 `num` ，为了保持二叉搜索树 “左子树 < 根结点 < 右子树” 的性质，插入操作分为两步：
 
-1. **查找插入位置：** 与查找操作类似，我们从根结点出发，根据当前节点值和 `num` 的大小关系循环向下搜索，直到越过叶结点（遍历到 $\text{null}$ ）时跳出循环；
+1. **查找插入位置：** 与查找操作类似，我们从根结点出发，根据当前结点值和 `num` 的大小关系循环向下搜索，直到越过叶结点（遍历到 $\text{null}$ ）时跳出循环；
 
 2. **在该位置插入结点：** 初始化结点 `num` ，将该结点放到 $\text{null}$ 的位置 ；
 
-二叉搜索树不允许存在重复节点，否则将会违背其定义。因此若待插入结点在树中已经存在，则不执行插入，直接返回即可。
+二叉搜索树不允许存在重复结点，否则将会违背其定义。因此若待插入结点在树中已经存在，则不执行插入，直接返回即可。
 
 ![bst_insert](binary_search_tree.assets/bst_insert.png)