Auxiliary device facilitating breast lump excision

The utility model relates to the technical field of tumor resection devices, in particular to an auxiliary device facilitating breast lump resection, which comprises an expanding device, the expanding device comprises an upper supporting sheet and a lower supporting sheet, the upper supporting sheet and the lower supporting sheet are both of an L-shaped structure, the L-shaped long side of the upper supporting sheet is an upper blade, the L-shaped short side of the upper supporting sheet is an upper handle, the L-shaped long side of the lower supporting sheet is a lower blade, and the lower handle is an upper handle. The L-shaped short edge is a lower handle; the turning position of the upper supporting piece is arranged on the lower handle of the lower supporting piece through a rotating shaft, the upper handle and the lower handle are connected through a locking piece, an end face is arranged between the turning position of the lower handle and the connecting position of the upper supporting piece, and a pl