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The Community Microwave Emission Model （CMEM） developed by the European Centre for Medium-Range Weather Forecasts （ECMWF） can provide a link between surface states and satellite observations and simulate the passive microwave brightness temperature of the surface at low frequencies （from 1 GHz to 20 GHz）. This study evaluated the performance of the CMEM cou- pled with the Community Land Model （CLM） （CMEM- CLM） using C-band （6.9 GHz） microwave brightness temperatures from the Advanced Microwave Scanning Radiometer on Earth Observing System （AMSR-E） over East Asia. Preliminary results support the argument that the simulated brightness temperatures of CMEM-CLM from July 2005 to June 2010 are comparable to AMSR-E observational data. CMEM-CLM performed better for vertical polarization, for which the root mean square error was approximately 15 K, compared to over 30 K for horizontal polarization. An evaluation performed over seven sub-regions in China indicated that CMEM-CLM was able to capture the temporal evolution of C-band brightness temperatures well, and the best correlation with AMSR-E appeared over western Northwest China （over 0.9 for vertical polarization）. However, larger biases were found over southern North China and the middle and lower reaches of the Yangtze River.