The plant diversity of research and analysis were carried out for the 3 sample areas on the northern bank of Hengshui lake.The results showed that the herbaceous richness on the northern of Hengshui lake was higher than arbor and shrubby,and mainly for gramineous plants.In the 3rd sample area,the arbor and herb layer was with the most species diversity and the distribution was also the most uniform.That’s because of that 3rd sample area was far away from village which’s less affected by human disturbance.