The invention belongs to the technical field of surgical instruments, and particularly relates to a multifunctional abdomen retractor. The multifunctional abdomen retractor comprises vertical lifting rods, locking handles, a hook plate, main connecting rods and a U-shaped fixing rod, and is characterized in that a first fixing rod and a second fixing rod are arranged between a first auxiliary lifting rod and the adjacent vertical lifting rod and between a second auxiliary lifting rod and the adjacent vertical lifting rod respectively, the first fixing rod and the second fixing rod are connected with the upper ends of the corresponding vertical lifting rods through rotating shafts and are each fixedly provided with an auxiliary connecting rod and an auxiliary hook plate connected with the auxiliary connecting rod, the main connecting rods and the auxiliary connecting rods are provided with regulating holes, the auxiliary connecting rods are fixedly connected with the first fixing rod or the second fixing rod, the main connecting rods and the U-shaped fixing rod through inserting rods and the regulating holes, the inserting rods are provided with external threads, and the upper portion and the lower portion of each inserting rod are each provided with a fixing nut. The multifunctional abdomen retractor has the advantages that the shape of the retractor and the position of the hook plate can be regulated, and the hook plate can be prevented from getting loose in the pulling process.