The invention discloses a lifting and fixing type dressing case inner container installing mechanism. The lifting and fixing type dressing case inner container installing mechanism comprises a rack; a through hole is formed in the middle portion of a top plate of the rack; a lower supporting plate is fixed below the top plate of the rack; a lifting cylinder is fixed to the bottom face of the lower supporting plate; a push rod of the lifting cylinder vertically and upwardly penetrates the lower supporting plate and is fixedly provided with a lifting plate which is inserted in the through hole in a sleeved manner; a placement sleeve and an upper connection frame are fixed to the middle portion of the top face of the top plate of the rack; a pushing cylinder is arranged on the middle portion of the top face of a top plate of the upper connection frame; a push rod of the pushing cylinder vertically and downwardly penetrates the top plate of the upper connection framer and is fixedly provided with a grabbing block; a suction cup is fixed to the bottom face of the grabbing block; an annular cover is fixed to the side walls of the grabbing block; and a clamping cylinder is fixed in a side plate of the annular cover. According to the lifting and fixing type dressing case inner container installing mechanism, direct feeding can be achieved through a feeding hole of a main case body, automatic lifting is achieved, an inner container is automatically installed, the installing efficiency of the inner container is high, the effect is good, and installing is in place.