Abstract: We reported north cold zone to use small size pellet food culture Aristichthys nobilis Richardson fingerling at 5.6 mu in Pond,culturing 131 day,total yield fingerling is 2433kg,average output per mu is 434.5 kg,therein Aristichthys nobilis Richardson output per mu is 305 kg,account for total Yield of 70.2%，average fish body weight is 76.25g,survival rate 80%.

Key words: Small size Pellet food, culture, Aristichthys nobilis Richardson fingerling