Abstract: The sale rule for new products sales is very important for the enterprise; nowadays, the repeat purchase non-durable goods occupy a large share on the market, therefore the research on the diffusion model of new repeat purchase has the great plactical significance for the enterprises. Based on the analysis of existing technical diffusion model for the repeat purchase goods, the Logit model is applied to the products of Chuming corporation, and the application details are given, the results of the research are explained by using economeric method. The shortcomings of Logit model and the inadequate that needs to be improved are proposed. The results provide the reference for using the model to forecast the sales by enterprises.

Key words: technology diffusion, repeat purchase, Logit model, econometrics