Understanding of precipitation spatial heterogeneity is of great importance in water resource management. The study analyzed spatial heterogeneity of precipitation on Lü′er gully small watersheds of the third subdivision in the hilly—gully region of the loess plateau from a topographic perspective.The results indicate that the average annual precipitation decreased from on the upper to the middle and lower reaches

and increased with the altitudes.Different precipitation intensity resulted in different spatial heterogeneity of precipitation;the more the precipitation

the more the spatial heterogeneity.The equivalent curves were simulated for different precipitation events with SURFER software

which implied that the effects of elevation and distance from the channel mouth increased with the amount of precipitation.