Abstract: A prevention against shifting of tip seal of a scroll compressor with a pair of stationary scroll and swirl scroll provided with spiral laps projectingly on an inside of end plates engaged with each other for sucking in a gas from a suction port and discharging a compressed gas from a discharge port, wherein a tip seal groove is formed on the laps provided projectingly on said pair of scrolls, a tip seal is disposed in the tip seal groove, which comprises providing a fixing means for preventing a discharge port side end portion of the tip seal disposed in said tip seal groove from shifting to a suction port side from a discharge port side along said tip seal groove, thereby preventing a leakage of a lap nose on the discharge port side.