diff --git a/README.md b/README.md
index e15f372..b921d62 100644
--- a/README.md
+++ b/README.md
@@ -272,6 +272,46 @@ client.partitions.drop(
 )
 ```
 
+### Roles
+```ruby
+# List roles available on the server
+client.roles.list
+```
+```ruby
+# Describe the role
+client.roles.describe(role_name: 'public')
+```
+
+### Users
+```ruby
+# Create new user
+client.users.create(user_name: 'user_name', password: 'password')
+```
+```ruby
+# List of roles assigned to the user
+client.users.describe(user_name: 'user_name')
+```
+```ruby
+# List all users in the specified database.
+client.users.list
+```
+```ruby
+# Drop existing user
+client.users.drop(user_name: 'user_name')
+```
+```ruby
+# Update password for the user
+client.users.update_password(user_name: 'user_name', password: 'old_password', new_password: 'new_password')
+```
+```ruby
+# Grant role to the user
+client.users.grant_role(user_name: 'user_name', role_name: 'admin')
+```
+```ruby
+# Revoke role from the user 
+client.users.revoke_role(user_name: 'user_name', role_name: 'admin')
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
diff --git a/lib/milvus.rb b/lib/milvus.rb
index 606e59b..5197263 100644
--- a/lib/milvus.rb
+++ b/lib/milvus.rb
@@ -12,4 +12,5 @@ module Milvus
   autoload :Indexes, "milvus/indexes"
   autoload :Partitions, "milvus/partitions"
   autoload :Roles, "milvus/roles"
+  autoload :Users, "milvus/users"
 end
diff --git a/lib/milvus/client.rb b/lib/milvus/client.rb
index 8a677b0..92c73a7 100644
--- a/lib/milvus/client.rb
+++ b/lib/milvus/client.rb
@@ -33,6 +33,10 @@ def roles
       @roles ||= Milvus::Roles.new(client: self)
     end
 
+    def users
+      @users ||= Milvus::Users.new(client: self)
+    end
+
     def connection
       @connection ||= Faraday.new(url: "#{url}/#{API_VERSION}/") do |faraday|
         if api_key
diff --git a/lib/milvus/users.rb b/lib/milvus/users.rb
new file mode 100644
index 0000000..b278406
--- /dev/null
+++ b/lib/milvus/users.rb
@@ -0,0 +1,96 @@
+# frozen_string_literal: true
+
+module Milvus
+  class Users < Base
+    PATH = "users"
+
+    # Create a user
+    #
+    # @param user_name [String] Username for the user
+    # @param password [String] Password for the user
+    # @return [Hash] Server response
+    def create(user_name:, password:)
+      response = client.connection.post("#{PATH}/create") do |req|
+        req.body = {
+          userName: user_name,
+          password: password
+        }
+      end
+
+      response.body
+    end
+
+    # Describe a user
+    #
+    # @param user_name [String] Username for the user
+    # @return [Hash] Server response
+    def describe(user_name:)
+      response = client.connection.post("#{PATH}/describe") do |req|
+        req.body = {
+          userName: user_name
+        }
+      end
+
+      response.body
+    end
+
+    # List users
+    #
+    # @return [Hash] Server response
+    def list
+      response = client.connection.post("#{PATH}/list") do |req|
+        req.body = {}
+      end
+
+      response.body
+    end
+
+    # Drops a user
+    #
+    # @param user_name [String] Username for the user
+    # @return [Hash] Server response
+    def drop(user_name:)
+      response = client.connection.post("#{PATH}/drop") do |req|
+        req.body = {
+          userName: user_name
+        }
+      end
+
+      response.body
+    end
+
+    def update_password(user_name:, password:, new_password:)
+      response = client.connection.post("#{PATH}/update_password") do |req|
+        req.body = {
+          userName: user_name,
+          password: password,
+          newPassword: new_password
+        }
+      end
+
+      response.body
+    end
+
+    def grant_role(user_name:, role_name:)
+      response = client.connection.post("#{PATH}/grant_role") do |req|
+        req.body = {
+          userName: user_name,
+          roleName: role_name
+        }
+      end
+
+      response.body
+    end
+
+    def revoke_role(user_name:, role_name:)
+      response = client.connection.post("#{PATH}/revoke_role") do |req|
+        req.body = {
+          userName: user_name,
+          roleName: role_name
+        }
+      end
+
+      response.body
+    end
+  end
+end
diff --git a/spec/fixtures/users/create.json b/spec/fixtures/users/create.json
new file mode 100644
index 0000000..4cfb27b
--- /dev/null
+++ b/spec/fixtures/users/create.json
@@ -0,0 +1 @@
+{"code": 0, "data": {}}
\ No newline at end of file
diff --git a/spec/fixtures/users/describe.json b/spec/fixtures/users/describe.json
new file mode 100644
index 0000000..1aac39f
--- /dev/null
+++ b/spec/fixtures/users/describe.json
@@ -0,0 +1 @@
+{"code": 0, "data": []}
\ No newline at end of file
diff --git a/spec/fixtures/users/drop.json b/spec/fixtures/users/drop.json
new file mode 100644
index 0000000..1aac39f
--- /dev/null
+++ b/spec/fixtures/users/drop.json
@@ -0,0 +1 @@
+{"code": 0, "data": []}
\ No newline at end of file
diff --git a/spec/fixtures/users/grant_role.json b/spec/fixtures/users/grant_role.json
new file mode 100644
index 0000000..e69de29
diff --git a/spec/fixtures/users/revoke_role.json b/spec/fixtures/users/revoke_role.json
new file mode 100644
index 0000000..4cfb27b
--- /dev/null
+++ b/spec/fixtures/users/revoke_role.json
@@ -0,0 +1 @@
+{"code": 0, "data": {}}
\ No newline at end of file
diff --git a/spec/fixtures/users/update_password.json b/spec/fixtures/users/update_password.json
new file mode 100644
index 0000000..4cfb27b
--- /dev/null
+++ b/spec/fixtures/users/update_password.json
@@ -0,0 +1 @@
+{"code": 0, "data": {}}
\ No newline at end of file
diff --git a/spec/milvus/users_spec.rb b/spec/milvus/users_spec.rb
new file mode 100644
index 0000000..59be15b
--- /dev/null
+++ b/spec/milvus/users_spec.rb
@@ -0,0 +1,117 @@
+# spec/milvus/users_spec.rb
+
+require "spec_helper"
+require "faraday"
+
+RSpec.describe Milvus::Users do
+  let(:connection) { instance_double("Faraday::Connection") }
+  let(:client) { instance_double("Client", connection: connection) }
+  let(:users) { described_class.new(client: client) }
+
+  describe "#create" do
+    let(:response_body) { File.read("spec/fixtures/users/create.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "creates a user" do
+      expect(connection).to receive(:post)
+        .with("users/create")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.create(user_name: "user_name", password: "password")
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#describe" do
+    let(:response_body) { File.read("spec/fixtures/users/describe.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "describes the user" do
+      expect(connection).to receive(:post)
+        .with("users/describe")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.describe(user_name: "root")
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#list" do
+    let(:response_body) { File.read("spec/fixtures/users/list.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "responds with a list of users" do
+      expect(connection).to receive(:post)
+        .with("users/list")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.list
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#drop" do
+    let(:response_body) { File.read("spec/fixtures/users/drop.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "drops the user" do
+      expect(connection).to receive(:post)
+        .with("users/drop")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.drop(user_name: "root")
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#update_password" do
+    let(:response_body) { File.read("spec/fixtures/users/update_password.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "updates the users's password" do
+      expect(connection).to receive(:post)
+        .with("users/update_password")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.update_password user_name: "username",
+        password: "old_password",
+        new_password: "new_password"
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#grant_role" do
+    let(:response_body) { File.read("spec/fixtures/users/grant_role.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "sets role to the user" do
+      expect(connection).to receive(:post)
+        .with("users/grant_role")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.grant_role user_name: "user_name", role_name: "admin"
+
+      expect(result).to eq(response_body)
+    end
+  end
+
+  describe "#revoke_role" do
+    let(:response_body) { File.read("spec/fixtures/users/revoke_role.json") }
+    let(:response) { instance_double("Faraday::Response", body: response_body) }
+
+    it "revokes the role" do
+      expect(connection).to receive(:post)
+        .with("users/revoke_role")
+        .and_yield(Faraday::Request.new)
+        .and_return(response)
+      result = users.revoke_role user_name: "user_name", role_name: "admin"
+
+      expect(result).to eq(response_body)
+    end
+  end
+end