The present invention relates to a method for preparing powder metallurgic nitrogen-contained/high-nitrogen stainless steel components, and comprises the following steps: raw materials preparation, forming, degreasing treatment, sintering and other static press, wherein, during the static press such as the sintering, the temperature increasing speed is 3 to 10 DEG C per minute; the sintering gas is the pure nitrogen or the mixed gas of the nitrogen, hydrogen and the argon; the pressure/partial pressure of the nitrogen is consistent with the solubility of the nitrogen in the alloy system; the sintering temperature is 1200 to 1450 DEG C, and the heat preservation period is 10 to 20 minutes; after the density is more than 90 to 95 percent, the pressure is increased to 3 to 10 MPa; the partial pressure is maintained the same during the pressure increasing process, and the pressure is distributed on the argon and the hydrogen, and the heat preservation period is 60 to 240 minutes; after the density is more than 99 percent, the pressure is decreased and rapid cooling is performed. The content of the nitrogen of the component that is made with the method hereinabove can be controlled to the highest level; the composition constitution is uniform, the density is high, the flexibility is good, the deformation is less, the precision is high and the corrosion-resistance is good.