The utility model discloses a kind of placing racks for parts vacuum plating, including support rod, padlock rod, base and top, the base inner wall is fixedly connected with rotating part. In the present application, the base and the top are fixed to the outer cylinder by the cooperation of fastening rod and mounting piece, vertically move connecting sleeve, connecting sleeve linkage padlock rod, slider slides along vertical groove, so as to limit the axial deflection of connecting sleeve, until the connecting sleeve corresponds to the appropriate height, rotate locking rod to make it with the screw hole under this position, realize the fixation of connecting sleeve and padlock rod, rotate fixed rod to make it separate after boss, the cutoff rod can be independently separated, so that the notch of specified height is formed on main rod body, operator can increase or decrease the specified number of connecting sleeve and corresponding padlock rod through the notch, expand the height-adjustable and number increasing and decreasing function of connecting sleeve, improve the application range of the placing rack for parts vacuum plating.