The invention provides a method for preparing temperature-control hydrogenation catalyst and an application in chemigum hydrogenation. The method of the invention uses a metal catalyst having a formula of MaXmLb to realize the hydrogenation of butyronitrile latex and recycle noble metal by the following technical scheme, wherein M is rhodium, X is Cl and L is phosphine compound. The technical scheme comprises the steps of: adding chemigum, solvent, catalyst and trivalence phosphine compound into a reaction device, using a hydrogen substitution system, pressurizing to 0.5 to 5 Mpa, heating to 100 to 175 DEG C, keeping temperature for 3 to 24 hours, adding polyethylene glycol and n-heptane into the resultant of reaction after finishing reaction, stirring 30 min, standing, layering, and thentaking out the chemigum solution on upper layer, wherein the solution on lower layer contains the separated catalyst. The method of the invention ensures the chemigum hydrogenation catalyst having a fine temperature-control separating effect and improves the hydrogenation effect of the catalyst so the hydrogenation degree of the prepared chemigum is higher.