The wet whole fish meal production is one of the most advanced fish meal processing technologies worldwide at present. Consisting of five major parts: production of fish meal, oil refining system, double-effect falling film concentrating system and deodorization device for environment protection, and electrical general control, it can make fish meal and fish oil of high quality out of leftovers of waste and odd substances (such as head, skin, bowel, etc.) and little rough fish which is not edible, especially out of round fish which is very resourceful, and it has great economic benefits and social benefits.