Abstract: The General Sonar System Lab of IAAS used to underwater acoustics signal processing,underwater acoustics engineering and sonar system's research and experiment for a long term.The second generation to the fourthgeneration sonar were all borned here.Accordingly.we accumulate abundant experience.This paper presents a generalsignal processing board which was developed with ADSP-21060 SHARC.It's advantage include small volume,completefunction,high operation speed,powerful parallel processing ability and better reliability.It can also be intergrated inany kind of signal processing system and applied to all kinds of signal processing field.