Sweet and sour crispy fish is a traditional food in Leshan City, Sichuan Province, which belongs to Sichuan cuisine. This dish is made by cleaning fresh small fish, then wrapping it in a layer of paste and frying it in an oil pan. The finished product has crispy skin and tender meat. "Sweet-and-sour crispy fish" is a dish with strong local flavor, which is improved and developed by Leshan chef on the basis of "fragrant fried fish". This dish is sweet and sour, with beautiful color, crisp skin, tender meat, fresh and mellow flavor and strong sweet and sour taste.