The invention discloses a sterilizing pot exhaust heat energy recovering system in the can industry. The sterilizing pot exhaust heat energy recovering system comprises a sterilizing pot, a tubular heat exchanger, a condensate water collecting tank, a hot water buffering tank and a plate heat exchanger, wherein the sterilizing pot, the tubular heat exchanger, the condensate water collecting tank, the hot water buffering tank and the plate heat exchanger are sequentially connected through a pipeline. The sterilizing pot exhaust heat energy recovering system further comprises a sterilizing pot exhaust connecting tube arranged above the top of the sterilizing pot, and the sterilizing pot is connected to the sterilizing pot exhaust connecting tube through a plurality of steam releasing holes formed in the top of the sterilizing pot and is connected with the tubular heat exchanger through the sterilizing pot exhaust connecting tube. The sterilizing pot exhaust heat energy recovering system is used for recovering steam exhausted by the sterilizing pot, energy resources are saved, steam consumption in a factory is reduced, and besides noise is lowered.