The objective of this study was to investigate the relationship between diversity of microsatellite loci with common carp cross F₁. 25 microsatellite loci were used to analyze the genetic diversity of 2×2 full diallel cross of common carp() population and body weight variation among different genotypes. The result showed that the number of alleles ranged from 5.08 to 6.08. Effective numbers of alleles ranged from 1.4 PIC were from 0.42 to 0.49. The average expected heterozygosity value was ranged from 0.47 to 0.55. The highest genetic similarity index that came from the populations of Hh and Hj was 0.9795. The UPG MA trees based on genetic distance demonstrated that Huanghe carp was geneticallynear to Huanghe carp ♂×Jian carp♀. The association between these microsatellite loci and body weight was analyzed by least square linear model. The results showed that were detected between different genotypes of purebred carps on the HLJ13 locus. Compared to this, this difference the most favorable one, while the Hj and JH combinations had higher body weight than that of their parents’ pure breds. The study provis the foundation for molecular assistant selection of common carp in the future.