Abstract: The invention is a fisherman refrigerating device using engine exhaust, which comprises a refrigerating tub, a storage bottle of the coolant liquid ammonia, a condenser and two generators whose guiding pipe is connected to the inlet of the condenser via a valve. The outlet connects to the coolant inlet of the storage bottle, the coolant outlet of the storage bottle then connects to the inlet of the vaporizer through a flux control valve. The vaporizer outlet connects to the guiding pipe of the generators by a valve, the outer case of the generator has an engine exhaust pipe and an inner pipe on it. An inner tube with apertures and calcium chloride are between those pipes, and the inner tube connects to the guiding pipe. A sprinkling tube sits above the inner pipe and the outer case has a water pipe connector.