The invention relates to the technical field of a mud skin picture production accessory device, and particularly relates to a reinforcing auxiliary device for mud skin picture production. According tothe device, the operation is simple and convenient, the labor is saved, and the production efficiency is improved; the compaction effect on mud can be guaranteed, the quality of a formed mud skin picture is improved, and the practicability is improved; the device comprises an operation table, a left supporting plate, a right supporting plate, a top plate, a left hydraulic cylinder, a right hydraulic cylinder, a mounting plate, a pressing plate, a left hydraulic rod and a right hydraulic rod, wherein a rectangular through hole is formed in the middle of the mounting plate, and two limiting rods, a reciprocating lead screw and a connecting plate are arranged in the rectangular through hole; the device further comprises a ball bearing, a reciprocating motor, a front supporting plate, a rearsupporting plate, a pressing roller and four buffering devices; and three first inserting grooves are formed in the top end of the operation table, three first inserting columns are arranged on the front side of the bottom end of a first rectangular fixing frame, three second inserting grooves are formed in the front side of the top end of the first rectangular fixing frame, and three second inserting columns are arranged on the front side of the bottom end of a second rectangular fixing frame.