The remote receiver of the underwater acoustic remote control node needs to stand by in the water for a long time，so it is urgent to design the remote receiver with low power consumption. In this paper， the implementation method of remote control receiver with low power design is discussed，and the source program level，algorithm-level and compiler-level algorithm optimization methods are studied in detail. The optimized target code occupies a smaller space，works at a faster speed，and can achieve efficient and fast signal processing with low power consumption. Therefore，the service life，working efficiency and hours of the equipment are improved.
