The invention belongs to the technical field of ship manufacturing, and specially relates to a method for a ship ice-breaking test in real water area. The method comprises the steps that (1), two water areas are formed in a planned test area on the river surface, wherein the length and the width of each water area are 50 m and 10 m correspondingly, and a laboratory containing test equipment and testers is built; (2), two cable towing mechanisms are fixed to one end of an ice tunnel correspondingly, a ship module is adjusted to a marked ballast waterline at the other end, and arrangement, connection and debugging of the test equipment are conducted; and (3), the cable towing mechanisms tow the ship module to move at a constant speed, and open-water resistance and the like of the ship module in still water are measured. The method is applied to resistance tests of the ship module in a level ice zone and a broken ice zone, a self-propulsion test of the ship module and the like, and can accurately measure parameters, such as total resistance, resistance components, sinkage, trim, propeller thrust and torque and main motor power, of the ship module when the ship module sails in the ice zones.