Abstract: In order to solve the problem of weed damage in wheat field of conservational tillage in Hulunbeier area, increase wheat yield and farmers＇ income,eight chemical herbicides were choose to control the weed of wheat filed before the sowing and in the seedling stage. The results showed that： Chenopodium album, Polygonum convolvulus L,tall lattuce flower and leaf and green bristlegrass were dominant species of wheat field with conservational tillage in Hulunbeier area, lyme grass and salsola were the subdominule.The eight chemical herbicides all can be used to control the weed in wheat field and the control effects of mixed several herbicides were better than the single use of each herbicide.The effects on wheat yield had the same order with the effects on control effects,they both showed Glyphosate combined with 2,4-D-Butyr and puma super〉2,4-D-Butyr combined with Puma super〉Humai combined with Puma super〉10 percent of Yikuoning combined with Puma super〉2,4-D-Butyr~Puma super〉MCPA-Na〉Glyphosate〉Humai〉Pardner〉10 percent of Yikuoning〉Kuoyeku. The treatment which used several herbicides can be choose first,then were the 2,4-D-Butyr, Puma super, MCPA-Na and Glyphosate,10 percent of Yikuoning and Kuoyeku can ＇ t be used.