A display device and an adjustment method thereof are provided. The display device includes a display panel, a base configured to support the display panel, a sensor fixedly arranged on a bezel of the display panel, a controller, and an execution member cooperating with the base. The controller is electrically connected to the sensor and the execution member. The sensor is configured to collect user state data in real time. The controller is configured to acquire the user state data collected by the sensor, analyze the user state data acquired within a predetermined time period, determine a current state of a user, generate a control instruction in accordance with the current state of the user, and send the control instruction to the execution member. The execution member is configured to drive the base to move in accordance with the control instruction.