Yangdry fish means salting the fish and then drying it in the sun. People have just started making Yangdry fish, just to preserve the fish for a longer time, because there was no refrigerator. Fish meat will reduce moisture after sunning, plus salt anti-corrosion and sterilization, can be preserved for a longer time without spoiling. Later, people found that after this treatment, fish meat will become fishy and delicious. So, the habit of sun drying dried fish is retained. Now people sun dry fish is no longer just to save fish, more often to taste the unique taste of sun dry fish.