Abstract: Effects of different spacing form、density on structure of population、light distribution and yield of Phaseolus vulgaris were studied under the high yielding condition. The results indicated that there are beneficial to achieve appropriate population structure and thereby adjusting micro-climate by to enlarge space in row and reduce plant space in suitable planting density. Will improve the yield components，enhance the sand pace and land，and give high yield. in the experiment the most suitable density was 150000plants/ha，the best space in row was 60cm and 80+40cm，the best plant space was 10~15cm.