************************************************************************* 51181 H0707-495 is a and was observed with ASCA during AO-3 phase. It showed unusual X-ray spectrum consisting of soft blackbody like spectrum and hard power law, which is similar to that of steller black hole candidate in its high state. We found the X-ray inensity of this source decreased by facor of 1/30 from its detection by HEAO-1 sat to ASCA observation. We expect this source will exhibite spectrum transition from hight state to low state, the latter is characterized with usual single power law spectrum observed commonly in AGNs. *************************************************************************