Puncture auxiliary device for nephrology department

The utility model discloses a puncture auxiliary device for the nephrology department. The puncture auxiliary device comprises a shell, a supporting device, a puncture needle limiting device, a linear limiting plate, a cross-shaped limiting plate and a grip. The outer shell is grabbed and moved through the grip, the lower portion of the outer shell can be aligned with the portion, needing to be punctured, of a patient by changing the front-back position and changing the left-right position, the moving angle of the limiting pipe in the vertical direction is limited through the linear limiting plate and the cross-shaped limiting plate, and meanwhile the left-right position of the limiting pipe is limited; meanwhile, it is guaranteed that a limiting pipe can perfectly move up and down in a through hole in a cross-shaped limiting plate and a through hole in a straight-line-shaped limiting plate, a puncture needle is inserted into the limiting pipe, the limiting pipe is pushed to move through a pressing plate, the