The invention discloses a method for controlling the content of N in bearing steel GCr15. The new technology of high-carbon and low-temperature tapping is adopted in the key tapping step; in the refining process, carbon powder is uniformly spread and added into a ladle furnace by a shovel, foaming slag is formed, and electrode submerged-arc heating is carried out; vacuum treatment and continuous casting protective casting are adopted. According to the method, N absorption is stopped and controlled in each processes of smelting of the bearing steel GCr15, the operation is simple, the energy is saved, the environment is protected, the cost is lowered, the cost performance and the market competitiveness of products are improved, and finally the content of N in the bearing steel GCr15 can be controlled to be smaller than or equal to 0.0050%.