A gelatin extracting device mainly solves the problems that the quantity of required gelatin extracting pots is high, occupied area is large and cost is high when gelatin is extracted. The gelatin extracting device is characterized in that the gelatin extracting device is provided with at least three front gelatin extracting pots (1), the bottom of each front gelatin extracting pot (1) is communicated with a main pipeline (4) through a valve (2) and a branch pipeline (3), and the main pipeline (4) is communicated with a rear gelatin extracting pot (6) through a pump (5). After gelatin in raw materials in the front gelatin extracting pots is extracted by three times, excess materials are transferred into the rear gelatin extracting pot, the quantity of the gelatin extracting pots is effectively reduced, occupied area is small, and investment cost is reduced.