The precipitation regularity on Weibei highland is analyzed, and the results are as follows.(1) The annual precipitation was statist ically in accordance with normal distribution with a probability of 80% in ≥450mm precipitation and eight-year-cycle and twenty-year-cycle in time.(2) The distribution of monthly precipitation follows the equation: Y=0.0291 x ⁵The precipitation regularity on Weibei highland is analyzed, and the results are as follows.(1) The annual precipitation was statistically in accordance with normal distribution with a probability of 80% in ≥450mm precipitation and eight-year-cycle and twenty-year-cycle in time.(2) The dist ribution of monthly precipitation follows the equation: Y=0.0291 x ⁵-0. 8737 x ⁴+8. 9185 x ³-37. 277 x ²+72. 661 x-40. 575, R²=0. 9354.(3) The rainfall events often occurred during May to October a year, the highest rainfall was in July with alow variation. On the basis of the results, four techniques for improving rainfall utilization efficiency are put forward,firstly, basic building of farmland and soil fertiliza ion, secondly, preservation water with less tillage and mulch,thirdly, drop irrigation and micro-irrigation with mulch, fourthly, integrated controls of desolate mountains with rain collect ion planting.-0.8737 x⁴+8. 9185 x ³-37. 277 x ²+72. 661 x-40. 575, R²=0. 9354.(3) The rainfall events often occurred during May to October a year, the highest rainfall was in July with a low variation. On the basis of the results, four techniques for improving rainfall utilization efficiency are put forward,firstly,basic building of farmland and soil fertilization, secondly, preservation water with less tillage and mulch,thirdly, drop irrigation and micro-irrigation with mulch, fourthly, integrated controls of desolate mountains with rain collection planting.