The method combining field trial with laboratory analysis was employed in the study,by takingpepper(Capsicum frutescens L.)and tomato(Fructus lycopersici)as the research objects and choosing lettuce(Lactuca sativa L.),garlic(Allium sativum L.)and wheat(Triticum aestivum L.)as the fore crops.The yields and qualities of pepper and tomato under actinomycetes and no actinomycetes treatments were determined in the three different fore crops.The purpose of the study was to provide a theoretical basis for areasonable rotation mode and increase the yields and qualities of pepper and tomato.Results showed that thepepper nutritional quality index in actinomycetes treatment was significantly higher than that in no actinomycetes(P<0.05).The wheat stubble of the Vc content was significantly? @? €? higher than the lettuce crop and garlic crop,increased by 39.4% and 45.3%;and the soluble sugar and capsaicin of pepper were increased by9.4% and 33.3%,respectively.The Vc content,protein,soluble sugar and organic acid content of tomatowere increased by 12.1%,14.0%,9.5% and 39.8%,respectively.Meanwhile,the yields of the pepper andtomato under garlic fore crop were dramatically increased by 9.4% and 13.7%in the actinomycetes treatment.The application of actinomycetes in the wheat stubble dramatically improved the qualities of pepperand tomato and in the garlic stubble,significantly increased the yields of pepper and tomato.