Abstract: The analysis of tobacco market big data is a challenge due to its huge volume and multiple dimensions, a big data processing and visualization approach based on spatial-temporal grid was proposed. The market data are preprocessed by constructing a spatial-temporal grid to reduce the quantity and dimension of data sample; further, the developing trends of tobacco market are visualized via spatial-temporal grid calculation and multiple visualization technologies to achieve an effective, interactive and visualized analysis of tobacco market big data. The real market data of tobacco industry were analysed by the proposed approach to investigate the developing trends of slim cigarette products, and the results showed that the sales situation of three selected variants of slim cigarette basically agreed with that of total slim cigarette market in China. The real sales data of cigarette brand "Zhenlong (Zhenpin)" manufactured by China Tobacco Guangxi Industrial Limited Corporation were also analysed to demonstrate its sales situation at different periods. The proposed approach provides technical supports for promoting the ability and efficiency of cigarette enterprises in market analysis.