Applied effect and environment effect of organic fertilizer black pearl on capsicum were studied by using capsicum as indicating crop. The obtained result showed that compareed with farmer custom fertilizer, organic fertilizer black pearl could promote vegetative growth and reproductive growth obviously. It could decrease Nitrate-N content by 12.6mg/kg and increase Vitamin C content by 201mg/kg, coarse fat by 1.68%. It also could increase yield by 10.8%. While organic fertilizer black pearl and NPK chemical fertilizer no difference. Organic fertilizer black pearl could decrease Nitrate-N leaching compare with NPK and custom fertilizer