The studies on resting eggs of cladoceran were reviewed in this paper.It was emphasized on the morphology of resting eggs,and the factors influencing resting eggs production,preservation and hatching of resting eggs.The resting eggs are usually roundness or oval,and there is a thick membrane outside them.The formation of resting eggs depends primarily on biological factors(genetic factors,population density,etc)and non-biological factors(temperature,food,illumination,etc).The factors affecting the hatching of resting eggs are the formation and time of preservation as well as illumination and temperature of hatching period.