The invention discloses a fuse protective cover which comprises first and second insulating covers, and the first and second insulating covers are combined to form a casing of the insulated protectivecover. Thus, a fuse body is comprehensively wrapped in the casing to realize insulation isolation, and the insulation distance is ensured. When fuse maintenance is needed, an L-shaped door body is opened in a state without power failure, a worker can maintain and replace the fuse in the state most circumferential area of the fuse is kept in the insulated and isolated state, and the working efficiency and safety are improved.