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An error control coding method is proposed to improve the reliability of serial data transmission for the display information of a LED large screen remote communication system.Considering the difference of the hardware basis and the implementation requirements between a transmitter and a receiver,a parallel algorithm structure is presented at the information transmitter,and the generating coding matrix is deduced to improve the real time performance of the coding algorithm.Moreover,a dual clock serial circulation decoding structure is presented at the information receiver,in which the high-speed clock after serial syndrome computation is used to correct the error bit to allow the long codeword to obtain a low hardware overhead and real time processing ability.Practice and theoretical analysis shows that the designed scheme can accomplish a high effective coding in efficiency of 98.2%,and can reduce the bit error rate effectively at least 1 order of magnitude in the application.The scheme can achieve high efficient serial transmission of display information.