The invention discloses a semi-automatic intelligent fixing device for cattle. The semi-automatic intelligent fixing device comprises two tetrahedron-shaped frameworks which are fixed on the ground, wherein the frameworks are arranged in parallel; each framework is internally provided with a fixed fence; one end of one framework is connected with one end of the other framework through a door frame; the door frame is provided with a fixed door; a cattle head fixing device is arranged on the fixed door; a foldable door is arranged on the door frame; a bracket is arranged at the tops of the frameworks and the door frame; two fixed fence control devices are arranged on the bracket; each fixed fence is connected with the corresponding fixed fence control device; the fixed fence control devices are connected with a steel wire rope; and the steel wire rope is arranged on a rotary shaft and a handle is arranged at one end of the rotary shaft. The device disclosed by the invention can be used for fixing a cattle head and a cattle body at the same time, so that the pains of cattle are alleviated and the resistance and stress response of the cattle are reduced.