The Heavenly Stems and the Earthly Branches can be used to pair in a definite order and combine in a cycle of sixty years. Based on the theorem of a cycle of sixty years, we elaborated its changing rule, and put forward the ranks to locate every sixtyyear. We also organized the sixtyyear, the ranks and the numbers together to make a new calender based on the Heavenly Stems and the Earthly Branches.