This research project investigates the impact of the fast fashion brands launch the series of sustainable and environmentally friendly products on consumers’ intension. Corporate social responsibility is adapted as independent variable and the brand image is used as mediation variable, SPSS is used for further analysis. This research has been validated by the research hypothesis and concluded the following hypothesis: (1) CSR has positive influence on brand image (2) CSR has positive influence on Purchase Intention (3) Brand Image has positive influence on Purchase Intention (4) Brand image has a mediating effect on the CSR and purchase intention.