The invention discloses salted instant dried hemisalanx prognathus capable of drifting fragrance and clearing grease and a preparation method of the salted instant dried hemisalanx prognathus. The salted instant dried hemisalanx prognathus is prepared from the following raw materials in parts by weight: 500-550 parts of hemisalanx prognathus, 10-12 parts of iodised salt, 15-18 parts of crystal sugar, 50-60 parts of Baijiu, 10-12 parts of ginger powder, 30-35 parts of mashed garlic, 20-23 parts of loquat flower honey, 10-12 parts of folium llicis latifoliae, 13-15 parts of wrinkled gianthyssop herb water, 30-35 parts of soaked ginger granules, 30-35 parts of deep sea fish oil, 30-35 parts of puffed pumpkin seed kernel powder, 30-35 parts of apple vinegar, 13-15 parts of lotus leaves processed with vinegar, 10-12 parts of bitter gourd slices, 5-6 parts of lemon grass, 10-12 parts of fermented glutinous rice and 50-60 parts of grape wine. The salted instant dried hemisalanx prognathus disclosed by the invention is rich in fragrance, crisp in bones, fragrant in meat, moderate in salty taste, chewy, free from fishy smell, plump in somatotype, free from wrinkles or crinkles, and fresh, fragrant, crisp and delicious.