The crossbreeding between Dalian population of Haliotis discus hannai and Japanese population of H .discus discus was carried out ,and the hybrid seedlings were used for further seeding production . The results showed that the reciprocal cross had a lower fertilization rate and hatching rate compared with the inbreeding group ,but the survival rate of the juveniles was higher than the inbreeding group ,0 .34%higher .They had different shell length ,higher in the reciprocal cross was than in the inbreeding group , the maximum of 2 .01 cm .When the H .discus hannai and H .discus discus were taken as parents for aba-lone seeding production ,20 ,207 ,500 abalones were obtained (average shell length 2 .01 cm)after 160 days later at a rate of 4345 .7/m2 .The findings indicate that this way of intraspecific hybrization can improve and optimize abalone germplasm .%采用皱纹盘鲍大连群体与盘鲍日本群体进行杂交育苗试验和鲍苗种生产。结果表明，皱纹盘鲍和盘鲍正、反交组合的受精率和孵化率均低于两亲本自交组，而其苗种成活率高于两亲本自交组（提高达20％以上）；皱纹盘鲍和盘鲍的正、反交组合鲍苗的生长情况是，其平均壳长明显高于两亲本自交组鲍苗的平均壳长，最长达2．01 cm ；皱纹盘鲍与盘鲍作为亲本进行鲍苗种生产，经160 d培育，共培育出鲍苗种2020．75万只（平均壳长2．01 cm ），鲍出苗量平均4345．7只／m2。通过鲍种内杂交的育种方法，可以达到改良和优化鲍种质的目的。
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