Abstract: A multi-function double-canopy umbrella comprises: a first foot, a second foot, a mounting plate bolted to the first and second feet, a lower post attached to the mounting plate, an upper post, an inner core inserted into the lower and upper posts, a central tube, a spool, a crank rotatably attached to the spool, a rope threaded through the central tube, central ribs, central arms pivotably attached to the central ribs, an adjustable central canopy attached to the central ribs to adjust to different heights, an intersector slidably attached to the central tube, first ribs pivotably connected to the intersector and central arms, second ribs, multi-rib-connecting cores slidably connected to the first and second ribs to adjust the multi-function double-canopy umbrella to multiple different sizes, raising arms foldably attached to the intersector, an adjustable ring canopy attached to the first and second ribs, and adjusting flaps sewn to the adjustable ring canopy to adjust it to multiple different sizes.