A friction heat technique for closing end of seamless steel pipe uses a cylidrical male die which has a cylindrical blind hole with bottom in the shape of revolving body, one end int he shape corresponding to revolving body and another end with shoulder and circular boss inserted into hole of mainshaft of lathe and a femal die. Said male die is clamped by chuck and said female die is installed ontailstock. The seamless steel pipe is inserted into the blind hole of male die at its one end and female die at another end. High-speed rotationa nd press generate high-temp press welding to close the end of pipe. Its advantages are high precision quality, productivity and easy operation.