The invention discloses an angle-adjusting garbage compression device. The angle-adjusting garbage compression device comprises a compressor. An accommodating groove is formed in the bottom surface ofthe compressor; a compression plate is slidably connected in the accommodating groove in a matched manner; a first sliding cavity is formed in the compressor above the accommodating groove; a first sliding block is slidably connected in the first sliding cavity in a matched manner; a fourth sliding groove formed through left and right is formed in the first sliding block; a driving cavity extending leftward is formed through the inner wall of the left side of the first sliding cavity; a first rotating shaft extending left and right is rotatably connected in the driving cavity in a matched manner; the extending tail end on the left side of the first rotating shaft is connected to a first motor in a matched manner; the left inner wall of the driving cavity is formed in the outer surface ofthe first motor and is fixedly connected to the outer surface in a matched manner; the extending portion on the right side of the first rotating shaft stretches into the fourth sliding groove and theextending tail end on the right side is rotatably connected to the inner wall of the right side of the first sliding cavity in a matched manner; and a first concave wheel is fixedly arranged on the outer surface of the first rotating shaft in the fourth sliding groove. The angle-adjusting garbage compression device controls compression work automatically and compress garbage from many sides, so that the occupied area is reduced.