Measuring the BH masses is helpful for tracing their growth path and for studying the co-evolution of BHs with the bulge of their host galaxies. The primary goal of Megamaser Cosmology Project (MCP) is to measure the Hubble Constant H0 using circumnuclear water megamaser in external galaxies, and the water megamaser can also be used as a tracer to measure the BH mass. I am going to report the new progress on BH mass measurement in MCP in the past few months and also make a brief introduction on our new water maser survey criteria.