Abstract: The Hunhe fault zone is a western extension of the Shenyang-Dunhua Mishan fault and there can be found an evidence of Pre-Sinian movement. It is suggested that the faulting of Hunhe fault zone was significant in Mesozoic time and more intensive and frequent in Tertiary and Quaternary.Basing upon the data on geology, morphology and seismicity. this paper illustrates the trace of the neotectonic movement since Tertiary.Actually this fault acts as one of main faults of Cathaysian tectonic system. In general, this paper deals with only the Shenyan-Qingyuan section.