To investigate the proper eclosion condition of Black Soldier Fly(BSF), Hermetia illucens was investigated the eclosionperiod and rate by cluster size and temperature for 3 weeks. Respectively, ten pupaes were added to the pupae(FTP)and rice husk (TTR) at 25℃, also treated only with pupae(TTR) and rice husk (TTR) at 30℃. In addition, Four hundredpupaes of each pupa were treated with only pupa (SP) and rice husk(SR) at 25℃, while was tested only pupa(TP) andrice husk(TR) at 30℃. As a result of the small group experiment, the FTR group showed the highly rate of emergencerate of 96.6%, which was more efficiently than other treatments, and also, TR group showed of highly efficiency (96.25%).Compared to the small group experiment, the algebra rate and algebra rate averaged 1.1 days faster and increased by13.3%. Two experimental results showed that eclosion rate was influenced by temperature and eclosionrate by shelter.