The invention discloses a method for recycling aroma in an ossein-based maillard reaction. The method comprises the following steps: providing multiple stages of condensers, wherein the multiple stages of condensers are distributed in the vertical direction, the top end of a lower-stage condenser is connected to an upper-stage condenser through a first pipe, a liquid draining pipe is arranged at the bottom end of each condenser, the bottom end of a bottommost-stage condenser is communicated with a reaction tank through a second pipe, a first valve is arranged on each first pipe, a second valve is arranged on the second pipe, and each liquid draining pipe is connected to the reaction tank; from the bottom to the top, continuously feeding circulating cooling water into the multiple stages of condensers; waiting for beginning of the maillard reaction, opening the second valve first and then opening the first valves stage by stage from the bottom to the top, wherein one first valve is opened at a first time interval. By the method, the aroma component recycling effect is improved and the energy consumption is reduced.