To provide a cabinet of electronic equipment in which the occurrence of a weld line can be suppressed, so that periphery of an engaging hole can be reinforced.

A cabinet of electronic equipment comprises a resin-made box-type first case 2 with an open side, and a resin-made box-type second case 3 with an open side to be fixed to the first case 2 by engagement. An open part of the second case 3 is engaged with an open part of the first case 2, and a plurality of hooks 2a formed on an inner wall of the open part of the first case 2 are engaged with a plurality of engaging holes 3a that are formed to pass through a wall of the open part of the second case 3 and are elongated in the direction perpendicular to an engaging direction of the first and the second cases from an outer face side of the second case, so that the first and the second cases 2, 3 are coupled, wherein a rib 3c that crosses the engaging hole in its short side direction is formed integrally with the second case 3 on its inner wall.