The invention relates to the technical field of medical auxiliary instruments, in particular to an auxiliary device of a medical puncture needle for tumor intervention, which comprises a support and a plurality of fitting seats, the support is provided with an adjusting support, and the fitting seats are arranged on one side of the adjusting support; the independent rotating mechanism is arranged among the plurality of laminating seats; the multiple limiting mechanisms are arranged on the independent rotating mechanism; the
synchronizing mechanism is arranged between the adjusting bracket and the independent rotating mechanism; different from the prior art, when a worker uses the laminating
machine, the synchronous mechanism is used for driving the multiple laminating seats to rotate synchronously, the limiting mechanism is used for limiting the positions of the multiple laminating seats, preliminary integral
extrusion is carried out, the independent rotating mechanism is used for driving the laminating seats to rotate independently, and local
extrusion is selectively carried out; the device is simple and convenient to operate, the convenience of extruding and fixing the
breast part is improved, the fitting seat is quickly restored to the original position through the limiting mechanism, extruding and fixing on the
breast part are relieved, the extruding time on the breast is shortened, and the discomfort of a patient is relieved.