The invention discloses an oil squeezing system with a movable oil squeezing mechanism. The oil squeezing system comprises a rack, wherein feeding equipment, a transmission mechanism and a movable oil squeezing mechanism are arranged on the rack. The oil squeezing system also comprises an auxiliary cleaning device, wherein the auxiliary cleaning device comprises a base and a movable seat; the movable seat and the base are hinged together; a clamping structure which can be used for fixing the rack is formed in the movable seat; a threaded through hole is formed in the movable seat; an adjusting bolt is connected with the threaded through hole; by adjusting the adjusting bolt, an included angle between the movable seat and the base can be adjusted. According to the invention, dynamic balance is realized by barrel moving and material control plate adjusting so as to adapt to different working conditions, the material control plate is automatically adjusted in the barrel moving process, and oil of various different sizes can be matched. The squeezing rod and barrel can be cleaned up without being independent detached. According to the squeezing mechanism disclosed by the invention, the squeezing rod and the barrel can axially reciprocate relative to each other, the mechanism is convenient to clean, and cleaning operation is facilitated.