The invention discloses a shell for a handheld defect management terminal. The point of the technical scheme is that the shell comprises a housing, wherein a protective cover is arranged on the periphery of the housing and comprises a sleeve-joint ring and an elastic fender; the size of the elastic fender along the thickness direction of the housing is greater than the thickness of the housing; a clamping belt is arranged on the back along the length direction of the housing, and a groove for embedding the clamping belt is formed at one end of the back; a winding member for winding the clamping belt is arranged at the opening end of the groove; a clamping member for fixing the end of the clamping belt is arranged at the end of the back away from the groove; the front is covered with an isolation cover; a sealing edge is arranged on the periphery of the front of the housing; a flange is convexly arranged on the periphery of the isolation cover; and a mounting edge is convexly arranged on the inner wall of the opening end of the flange. The housing is shock-resistant and waterproof and convenient to hold and carry.