Abstract: Livability of Moerella iridescens was determined at a temperature of -1~0℃,1~3℃, 4~6℃,15~20℃ or 24~26℃, different preservation means and relative humidity. It was found that (1)the optimum temperature was 1~3℃ for its livability(a survival rate of 92% 3 days after holding); (2) the animals under 100% relative humidity had high livability.