The invention discloses a quartz crystal shell spot welding structure which comprises a bottom case. A spot welding structure body is fixedly connected to the bottom of the right side of the bottom case, a motor is fixedly connected to the left side of the top of the inner wall of the bottom case, a threaded rod is fixedly connected to the output end of the motor, and a polished rod is fixedly connected to the left side of the bottom of the inner wall of the bottom case. The quartz crystal shell spot welding structure is provided with the spot welding structure body, the motor, the threaded rod, the polished rod, a sliding sleeve, a movable plate, a threaded hole, a first connecting block, a connecting rod, a swing plate, a second connecting block, a rotating shaft, a transmission frame, asliding ring, a sliding rod, a first clamping block, a second clamping block and a movable block which are used in cooperation, the quartz crystal shell spot welding structure has the beneficial effect of being good in fixing effect, the problem that an existing quartz crystal shell spot welding structure is poor in fixing effect is solved, a user can conveniently use the quartz crystal shell spot welding structure very conveniently and quickly, and a large amount of time is saved.