The invention discloses a buffering and vibration damping mechanism for a servo motor. The buffering and vibration damping mechanism comprises a fixing plate, wherein two side plates are arranged at the top of the fixing plate, a baffle and a mounting plate are arranged on one side of each side plate, the baffle is arranged above the mounting plate, and springs are arranged on the mounting plate; a buffer plate is arranged above the fixing plate and below the baffle, and the bottom of the buffer plate is fixedly connected with the springs; positioning plates are arranged at the top of the fixing plate, and an inserting plate is horizontally arranged on the positioning plates and supports the buffer plate. When the servo motor is mounted at the top of the buffer plate, the inserting plate is horizontally arranged on the positioning plate and supports the buffer plate, the servo motor is mounted on the buffer plate, and the mounting stability and firmness of the servo motor are improved; meanwhile, the buffering and vibration damping mechanism can have buffering and vibration damping effects on the servo motor, the inside damage phenomenon of the servo motor is reduced, the working efficiency of the servo motor is improved, and the quality of finished parts is improved.