Fishing net applied to aquaculture of fishing raft and use method of fishing net

The invention provides a fishing net applied to aquaculture of fish rafts, comprising: a net wall having a movable portion, the movable portion having a movable upper edge section and a movable lower edge section; the net bottom is connected to the movable lower edge section; the upper edge net rope is connected to the movable upper edge section; the upper edge weight is connected to the upper edge net rope or the movable upper edge section; the lower edge net rope is connected to the movable lower edge section; the lower edge weight is connected to the lower edge net rope or the movable lower edge section; therefore, the movable lower edge section forms an A direction through the lower edge weight, the movable upper edge section gets close to the movable lower edge section along the A direction through the upper edge weight to generate an opening so as to form a fish luring state, and the upper edge net rope drives the movable upper edge section to be away from the movable lower edge section in the direction