The resources of the indigenous common carp was exploited which are bred in paddy field to become a paddy-field carp in Qingtian, Zhejiang Province. The gynogenesis in Qingtian paddy field carp was artificially induced by sperm inactivated via ultraviolet irradiation, and followed by meiotic chromosome doubling in the method of cold shock. The gynogenesis offspring (G₁) were obtained. Using common offspring (F₁) as standard, the morphological characteristics and gonad developments of the 160-day-old G₁ were observed. SNP technology was used for genetic identification of G₁ at the genomic level. The results showed G₁ had 3 types of body colors and different growth rates. Out of them, the black type shows the fastest growth, and an average body mass reached 392.45 g. The average growth rate of G₁ was significantly slower than F₁. G₁ showed morphological proportion's difference from F₁, and the ratio of total length/body depth was significantly different. In individuals, G₁'s ovaries developed in various periods, and ovaries of the large individuals had predominantly primary oocytes in stage Ⅲ which was similar to F₁. For the purity rate of genetic material of paddy field carp by SNP detecting, the average rate of homozygous loci 61.85% of G₁ was higher than 38.42% of maternal genome through gynogenesis technology, and some paternal genetic materials integrated into G₁'s individuals, resulting in the differences in body colors and growth rate. G₁ will be used for the conservation of genetic resources, and further for the selected breeding of Qingtian paddy field carp.