A novel multi-component reaction for synthesis of spiro[indoline3,4'-pyrano[2,3-c]pyrazole] derivatives is reported herein. 1,3-Dibromo-5,5-dimethylhydantoin is found to catalyze efficiently the four-component one-pot condensation of isatin, malononitrile, ethyl acetoacetate and hydrazine hydrate to afford a wide range of spiro[indoline3,4'-pyrano[2,3-c]pyrazole] derivativesin good yields. The use of a 1,3-Dibromo-5,5-dimethylhydantoin catalyst makes this method simple, convenient, and cost-effective.