Abstract: 【Objective】 To study the relationship between high-yielding dairy cows and outstanding breeding bull. The pedigrees of high-yielding dairy cows are tracked to find out the outstanding breeding bull, which might provide a theoretical basis for the subsequent selection of frozen breeding bulls. 【Methods】 The 305-day milk yield of the lactating cows in the field which produced more than 10,000 kg of bulls and daughters were counted, and the daughter's father number was matched by the insemination record, and the bull daughter's 305-day milk yield was over 10,000 kg and the total number of daughters was ranked. The top 18 outstanding breeding bulls were asked by the Chinese Dairy Data Center to check the performance of their offspring daughters and to analyze their daughter's performance data. 【Results】 The number of milk in the 65610339 bull of the farm was more than 10,000 kg, and the proportion of all the daughters was the highest, reaching 57.14%. The selected 18 excellent bulls were queried through the Chinese Dairy Data Center. The average protein rate of the daughter of the 65382019 bulls was the highest, at 3.32%. The average milk fat of the daughter of 65382094 bulls was the highest (4.04%). The average milk yield of the daughter of the 65908265 bull had the highest milk yield of 10,644 kg in 305 days. 【Conclusion】 The pedigree of high-yielding dairy cows was traced and found to have a common bloodline, and most of them originated from the outstanding Breeding of bulls in North America. Through the measurement of the performance of the bull daughter, the excellent rate of the daughter's determination was very high, which might be seen that the rigorously selected species of bull frozen sperm was genetically more advantageous.