The utility model relates to a hand tool for the electric power department, in particular to a multipurpose internal hexagonal wrench for a 10KV distribution network high and low equipment cabinet door. The multipurpose internal hexagonal wrench comprises a bent handle body (1) which is bent by one time, wherein the bent part of the bent handle body (1) is fixedly connected with a vertical handle body (2); one end of the bent handle body (1) is fixedly connected with a horizontal handle body (3); the other end of the bent handle body (1), the end part of the vertical handle body (2) and the end part of the horizontal handle body (3) are fixedly connected with internal hexagonal spanners (4); the bent handle body (1), the vertical handle body (2) and the horizontal handle body (3) are sleeved with insulation sleeves. According to the multipurpose internal hexagonal wrench for the 10KV distribution network high and low equipment cabinet door, the design is reasonable, the structure is simple, the wrench can be manufactured conveniently and easily through a conventional material, the wrench is convenient to carry, the size is small, an internal hexagonal bolt of the cabinet door can be screwed with less effort, the quantity and the weight of tools carried by a maintenance person everyday are reduced, and the working efficiency is improved.