Abstract: In order to promote the green and healthy and sustainable development of tomato industry,Horticultural 504variety of tomato was used as the material under the condition of facility cultivation.Five treatments were designed,including conventional fertilization（CK）,basal fertilizer reduction by 40%,top dressing reduction by 20%,top dressing reduction by 40%,and no fertilizer application.The effects of chemical fertilizer reduction combined with biofertilizer and fulvic acid potassium on the tomato growth and fertilizer utilization were studied.The results showed that tomato plant height decreased with the decrease of fertilization basal fertilizer reduction by 40%treatment had little effect on tomato stem diameter.There was no significant difference in the number of leaf nodes and fruit ears between CK,basal fertilizer reduction by 40%and top dressing reduction by 20%treatments.The fertilizer use efficiency of tomato was improved by reducing fertilizer application.The fertilizer use efficiency of basal fertilizer reduction by 40% treatment was the highest,which was not significantly different from that of top dressing reduction by 20% treatment.The partial productivity of basal fertilizer reduction by 40%treatment was the highest,which was higher than that of CK,topdressing reduction by 20%and topdressing reduction by 40%treatments by 20.70%,10.38%and 19.70%,respectively.The yield of CK treatment was higher,but there was no significant difference compared with the basal fertilizer reduction by 40%and topdressing fertilizer reduction by 20%treatments.To sum up,basal fertilizer reduction by40% or topdressing fertilizer reduction by 20%treatment had little effect on the growth and yield of facility tomato under the condition ofappropriate application of biofertilizer and fulvic acid.