Fish moving and lifting device suitable for migratory fishes in culture work ship and working method of fish moving and lifting device

The invention relates to a fish moving and lifting device suitable for migratory fishes in a culture work ship. The fish moving and lifting device comprises a fish culture cabin, a fish moving device and a fish lifting device. The side walls of the adjacent fish breeding cabins are communicated through the fish moving devices; the fish moving device is an upper arch-shaped channel, a step ascending step by step is arranged in the ascending part of the fish moving device, a step descending step by step is arranged in the descending part of the fish moving device, an adjustable water outlet with an adjustable opening degree is formed between every two adjacent steps, and an adjustable water inlet with an adjustable opening degree and an adjustable water inlet angle is formed in the upper portion of each step; the fish lifting device comprises a hoisting device and a fish collecting frame; the lifting device comprises a lifting guide rail and a moving part; the hoisting guide rail is arranged at the top of the c