The invention discloses a heat energy recovery and processing system for baking seaweed products. An outlet pipe is installed on the top of the oven, an output pipe is installed on the top of the outlet pipe, an exhaust pipe is installed on one side of the output pipe, and one end of the exhaust pipe is installed on a storage tank. On the top of the water tank, the exhaust pipe is connected to the heat exchange pipe through an adapter. The outer surface of the heat exchange pipe is covered with a number of heat conduction strips, and the inner side of the heat exchange pipe is installed with a deceleration ring. Water pipe, a booster pump is installed on one side of the water inlet pipe, through the exhaust pipe, the first restriction valve, the heat exchange pipe, the discharge pipe, the heat conduction strip, the deceleration ring, the air outlet fan and the temperature detector, the water vapor with heat Input into the heat exchange tube, reduce its flow speed, accelerate its heat exchange in the heat exchange tube, make the heat exchange effect more perfect, and circulate water supply through the water inlet pipe, booster pump and outlet pipe to ensure the temperature difference between inside and outside, and accelerate heat exchange.