We present a set of random number generator based on a quantum mechanical source,which is the process of splitting a beam of photons on a polarizing beam splitter.The randonmess of the polarizing photon is detected by the synchronous singlephoton coincidence detection technique.The random bit data are transferred to a personal computer via a digital I/O interface.The random numbers are tested by the Pseudorandom Number Sequence Test Program(ENT) which is the most popular random number test program in the world.The result is perfect.