SSMI and FF in 60 GHz OFDMRoF system were analyzed. RS code concatenated with PTCM and symbol interleaver were applied in the 60 GHz OFDMRoF system to reduce the these bad impacts of optical fiber. Using symbol interleaver to scatter errors in the subcarries of OFDM,RS with high code rate concatenated with PTCM could correct bit errors caused by intersubcarrier interference and frequency fading to improve the performance of system. Simulation results show that errors in subcarriers become welldistributed and will be favorable for error correction.The receiver sensitivity of 2.5 Gb/s OFDM signal adopted the 64QAM modulation format with RSPTCM can save up to 5 dB receive power relative to 2.25 Gb/s OFDM signal with the uncoded 16QAM scheme.