According to unreasonable tillage measures and serious soil erosion on sloping land in Yunnan province,a trial of maize intercropping vegetable and grass strip was carried out to reduce the soil and water losses.The result shows: The runoff of maize intercropping potato in August is 37.4% less than maize sole and bare cropping.The sediment of intercropping cabbage in July and August is 46.7% and 58.2% less than maize sole and bare planting.The sediment of intercropping mixed grass strip in July,August,September and October is 68.9%,74.6%,84.5% and 82.1% less than maize bare planting significant(P <0.01).The total sediment of maize intercropping cabbage,potato and green pepper are 47.0%,43.8% and 10.2% less than maize bare planting significant(P <0.01).The total sediment of maize intercropping grass strip are 60.8% and 70.0% less than maize bare planting significant(P <0.01).The total runoff of maize intercropping potato is 21.0% less than maize sole and polythene mulch planting.The average sediment of intercropping is 35.7% less than maize bare planting in low rain rate,61.4% in medium rain rate and 70.0% in high rain rate.So maize intercropping vegetable and grass strip are some good kinds of water and soil conservation tillage measures,especially during high rain rate rainfall.