The invention discloses an automatic assembly machine for a wall control switch. The automatic assembly machine comprises a rack, a trough conveyer device, a base feeding mechanism, a side terminal feeding assembly mechanism, a medium terminal feeding assembly mechanism, a terminal missing detection mechanism, a wane feeding assembly mechanism, an oil adding mechanism, a rotary plate mechanism, a bullet feeding mechanism, a spring feeding assembly mechanism, a pressure plate feeding assembly mechanism, a transition part feeding assembly mechanism, a transition part component assembly mechanism, a switch conduction detection mechanism, a defective product discharge mechanism and a finished product discharge mechanism, wherein the trough conveyer device, the base feeding mechanism, the side terminal feeding assembly mechanism, the medium terminal feeding assembly mechanism, the terminal missing detection mechanism, the wane feeding assembly mechanism, the oil adding mechanism, the rotary plate mechanism, the bullet feeding mechanism, the spring feeding assembly mechanism, the pressure plate feeding assembly mechanism, the transition part feeding assembly mechanism, the transition part component assembly mechanism, the switch conduction detection mechanism, the defective product discharge mechanism and the finished product discharge mechanism are arranged on the rack. According to the automatic assembly machine for the wall control switch, various components of the wall control switch can be automatically assembled into a finished product of the wall control switch; the automatic degree and the assembly efficiency are high; the quality of the product is stable; and the qualified rate of the product can be effectively improved.