Using artificial spawning and dry insemination, two hybrid experiments between cyprinus carpio vat. specularis ♀and Mylopharyngodon piceus ♂ were conducted. A total of 8789 thousand fertilized eggs and 3580 thousand 4-day old larvae were obtained. The fertilization rate was 94.15% and the hatching rate was 51.4%. The fertilized eggs took 5 min after fertilization to develop into formation of blastoderm, about 58 min into 2-cell, 1 h 10 min into 4-cell stage , 1 h 25 min into 8-cell stage, stage 1 h 43 min into 16-cell, 1 h 53 min into 32-cell stage, 2 h 20 min into morula stage, 2 h 49 rain into early-blastula stage, 4 h 30 min into middle- blastula stage, 5 h 18 min into late-blastula stage, 6 h 30 min into early-gastrula stage, 7 h 30 min into middle -gastrula stage, 9 h 30 min into late-gastrula stage, 10 h 20 rain into neurula stage , 12 h 00 rain into blastopre closing stage, 14 h 30 min into optic vesicle stage, 18 h 20 min into tail-bud stage, 23 h 30 min into eye lens formed stage, 25 h 00 min into muscular effect stage, 27 h 55 min into heart working stage, the hatched larvae stage was from 40 h 33 min to 45 h 30 rain after fertilization. The embryonic development was observed until the fourth day then the 4-day old larva were put into the pond for breeding. The embryonic development time of the hybrid is between their parents＇. Meanwhile the abnormal phenomena from fertilized eggs division, organ forming to hatched larva during each embryonic development stage of hybrid were observed. The malformation rate was 51.8%.