Testing mechanism for testing optical module

The utility model discloses a testing mechanism for testing an optical module. The testing mechanism comprises a frame, a first PCB (Printed Circuit Board), a probe seat and a calculation module, the frame is provided with a containing cavity, the first PCB is arranged at the top of the frame, and the probe seat is welded to a golden finger at the upper end of the first PCB and located outside the containing cavity; the calculation module is accommodated in the accommodating cavity; the calculation module comprises a second PCB, a high-speed connector, a plurality of M.2 connectors and a plurality of calculation boards; the second PCB is connected with a golden finger at the lower end of the first PCB through a high-speed connector, and the computing board is connected with the second PCB through an M.2 connector; the plate surfaces of the plurality of calculation plates are arranged in parallel, and a ventilation interval is formed between the plate surfaces of every two adjacent calculation plates; the cont