Silver carp head has no teeth. According to the inquiry data, silver carp has no teeth in the head and mouth, but has throat teeth. The head of silver carp can be made into fish soup. The main function of silver carp head soup, the main function of Hualien fish head is to warm the upper edge, corresponding to the human body, and the fish head is in the upper part of the human body. Because the efficacy of silver carp is sweet and nourishing, the main part acting on the human body is the upper edge, which corresponds to the human lung, so the main function of silver carp head is to nourish the human lung.