【Objective】 Summarizing the breeding experience of predecessors in time and mastering the genealogies of the improved varieties will not only help understand the breeding history, but also provide breeders with an extremely important reference in parent screening, which can make breeding more targeted.【Method】 Based on the ASP. NET and VB. net, the program algorithm is compiled to analyze the variety data, and the relevant results are presented in R language.【Result】 From 1979 to 2018, 9563 rice varieties were approved by national or provincial approval authorities 4159 of which were widely applied. Most of the backbone parents of indica rice are maintainer and restorer lines of hybrid combinations, but the use of hybrids also reduces the diversity of parents.【Conclusion】 Over the past 40 years, rice breeding in China has made great strides, and bred varieties have emerged in endlessly. The yield per unit area of rice varieties has been increased as well as the edibility quality and the resistance to blast and bacterial blight improved.