Abstract: Abstract:Two way contingency tables are main research method for occupational generation mobility. More often than not, the researcher directly interprets the descriptive statistics and reaches substantive conclusions without resort to explicit modeling. However, the method is very imprecise when the research analyzes multi-way tables. In this paper,I introduce loglinear model for occupational generation mobility; Meanwhile I discuss urban Chinese occupational generation mobility according to a cross-classified data in 2000.