Genetic variation analysis allowed the breeding selection in crops and aquatic animals.To establish a sustainable aquaculture industry of small abalone (Haliotis diversecolor),increasing the biodiversity of stocks is very urgent at present. The purpose of this projectis to analyze the genetic variability among different rearing stocks by using thetechniques such as microsatellite, random amplified polymorphic DNA (RAPD) andinter simple sequence repeat (ISSR). It would be the first step to set up the diversegenetic broodstocks of abalone and could be applied in breeding selection in the future.