The utility model discloses a multi -functional electric power specialized tool case, which comprises a body, there is the support frame at the middle part of body, the inner chamber bottom of body is connected to the bottom of support frame through a reset spring, the intracavity lateral wall of body is equipped with the buffer layer, the lug has been cup jointed in the inner chamber of through -hole, this multi -functional electric power specialized tool case, effect through a reset spring cushions the longitudinal force that the toolbox produced at the in -process that moves, the safety of inside instrument of protection support frame and equipment, pass through the lug, the effect of the 2nd reset spring and buffer layer, the transverse force that the support frame produced has been reduced in removal and handling, the security in improvement toolbox further, pass through the mating reaction of thread groove and bracing piece simultaneously, make the inner space in toolbox adjustable, make this multi -functional electric power specialized tool case have very strong practicality, to a great extent has improved the efficiency of electric power operation and electric power operation process's security.