By using mesoscale WRF model version 3.2.1 and NCEP/NCAR reanalysis data, the simulation effects of five different planetary boundary layer parameterization schemes on summer monsoonal climate in East Asia are comparatively analyzed. The results show that WRF Model is sensitive to all the boundary layer parameterization schemes, each of which impacts greatly precipitation, temperature, circulation and other meteorological factors in simulation domain. In conclusion, the Mellor-Yamada-Janjic(MYJ) and Quasi-Normal Scale Elimination(QNSE) scheme simulated 500 hPa summer average circulation well. The results of summer average daily precipitation simulation by Yonsei University(YSU) and QNSE scheme are more close to the NCEP reanalysis dataset. YSU and Mellor-Yamada-Nakanishi-Niino, level 2.5(MYNN2.5) scheme both simulated 2 m temperature well in East China.Five planetary boundary layer parameterization schemes all overestimated the subtropical high, so that the subtropical high is unable to stay long enough to provide more precipitation in the middle and lower reaches of the Yangtze River, but it leads to more precipitation over North China. By comparison of YSU and QNSE schemes it was found that 850 hPa vapor transportation mainly caused the differentce of precipitation. In most regions of China, YSU simulated higher temperature at 2 m, furthermore, daily precipitation depends on the temperature at 2 m in most regions. Therefore, choosing a suitable planetary boundary layer parameterization scheme can improve the accuracy of numerical simulation results.