The invention discloses a full-hydraulic servo steering system teaching stand. The teaching stand comprises a hydraulic pump, a fuel tank, a motor, a hydraulic steering gear, a frame body, wheels, a steering wheel, a steering shaft and at least one hydraulic cylinder, wherein the frame body is used for bearing other compositions; the wheels are used for moving the frame body; the fuel tank is used for storing hydraulic oil; the motor is used for driving the hydraulic pump; the hydraulic pump is used for conveying the hydraulic oil; the hydraulic cylinder is used for outputting hydraulic pressure; one end of the steering shaft is fixedly connected with the hydraulic steering gear, and the other end is fixedly connected with the steering wheel; and the hydraulic steering gear is used for configuring different oil paths for the hydraulic oil according to a steering force input by the steering wheel so as to enable the hydraulic oil to be conveyed to different cavities of the hydraulic cylinder and configuring oil paths through which the hydraulic oil from the hydraulic cylinder returns to the fuel tank. According to the invention, the full-hydraulic servo steering system teaching stand fills the blank of the market and improves the teaching quality of curriculums related to road engineering machinery and commercial automobile occupations.