Puncture device of puncture needle

The invention relates to the technical field of medical instruments, in particular to a puncture needle puncture device which comprises a fixator, a needle body is fixedly mounted at the bottom end of the fixator, an auxiliary puncture mechanism is arranged on the outer side of the fixator and comprises a moving frame, and connecting seats are fixedly mounted on the two sides of the bottom of the moving frame respectively. Auxiliary supporting mechanisms are arranged at the outer ends of the two connecting bases correspondingly. The auxiliary puncture mechanism can rapidly assist the needle body in conducting rapid and stable puncture operation on the puncture part of a patient, the situation that puncture is inclined in the operation process of manual puncture is avoided, and the accuracy of the subsequent detection effect is improved; meanwhile, the auxiliary supporting mechanisms arranged on the two sides of the needle body can effectively provide stable supporting force in the puncture process of the need