The utility model provides a housing sealing structure, including casing (1), sealing washer (2), lid (3), with the border of casing (1) lateral wall of lid (3) contact is provided with seal groove (4), is provided with in seal groove (4) and seal groove (4) complex sealing washer (2), the upper surface of sealing washer (2), lower surface all are provided with protruding muscle (5), interior border, the outer border surface of sealing washer (2) all are provided with arch (7). This housing sealing structure's sealing performance is outstanding, and there is certain claw power of stinging the sealing washer installation back in the casing with the seal groove lateral wall to realize easy installation, not loose functional characteristics of taking off, the simply easy installation of housing sealing structure, the stable performance maintains that anti shock and vibration performance is outstanding.