The effects of different nitrogen sources from the anaerobic fermented product (Biogas slurry) and the aerobic fermented product (Compost) of pig manure on Brassica oleracea growth and soil quality were discussed in this paper.The results indicated that at the same dosages of nitrogen fertilizr,yield of Brassica oleracea was higher when biogas slurry was applied than that of when compost was used. Biogas slurry could improve nutrient use efficiency.Meanwhile,the compost could increase soil organic matter and improve soil the value of pH,reducing soil acidification due to fertilizer application.Also,at the same dosages of nitrogen fertilizer,the soil available phosphorus and available potassium with only compost application was the highest.