The invention discloses a method for accurately controlling an end point of a vanadium extraction converter. The method for accurately controlling the end point of the vanadium extraction converter comprises the following steps: adding molten iron in a ladle into the converter and melting the molten iron by blowing, and when the temperature of the molten iron in the ladle is greater than 1,340 DEGC, adding cold charge in the ladle to cool the molten iron to the temperature which is less than or equal to 1,340 DEG C; and in a process of melting by blowing, adding the cold charge in the vanadium extraction converter to prevent the temperature of a molten pool from being increased too fast in the process of melting by blowing. By the method, before high-temperature molten iron is fed into the converter, steelmaking wastes are directly added into the ladle, the temperature of the molten iron is reduced by a physical principle, good conditions are provided for a vanadium extraction process, the problem that a large amount of vanadium extraction cold charge for cooling needs to be added in the process of melting by blowing is solved, meanwhile, consumption of scrap steel is added in a vanadium extraction link besides steelmaking, and reduction of overall costs of steel for steelmaking is facilitated. By the method, the recovery rate of vanadium in a vanadium extraction process of aconverter combined technology can be increased, the yield of vanadium slag is increased, and the problems that the temperature of a high-temperature molten iron pool is controlled unstably and vanadium is difficult to extract are solved.