Nam Dinh. is a big agricultural province in Red River delta of North Vietnam, where were planted three main agricultural products: rice, corn, peanut. By case-study investigation and energy analysis, the report put out detail information on biomass energy of rice straw, rice husk, com straw, corn core, peanut straw and total biomass energy from agricultural wastes in Nam Dinh province. According to investigation data, yearly the total agricultural wastes in Nam Dinh province is more than 1l million tons. Most of this agricultural wastes in Nam Dinh province are not collected and used at current time, it is mean.