The invention relates to a crane part multidimensional comprehensive measuring tool to achieve the goal that the provided measuring tool can accurately measure parameters such as vehicle wheel rim thickness, rim thickness bending deformation, tread diameter, tread roughness, vertical skew, excessive arc angle and is simple in structure, convenient for operation, and accurate in result, so that the safety of cranes is improved, accidents are reduced, and life and property safety are guaranteed. According to the technical scheme, the measuring tool comprises a ruler body, a main cursor in slide fit with the ruler body through a transverse slot, and a fixed measurement jaw arranged on an end of the ruler body. Transverse scales are arranged on the ruler body and the transverse slot. The measuring tool is characterized in that a vertical slot perpendicular to the transverse slot is produced in the main cursor; a main cursor measurement jaw for measuring part width is in slide fit with the vertical slot and is arranged in the vertical slot; and vertical scales are arranged on both the main cursor measurement jaw and the vertical slot.