PT. Bunda Sari Legit (Affinois), Medan experienced a decline in customer purchase decision that can be seen from the sales data this was suspected due to brand image, packaging and promotion. The aim of this research is to analyze whether brand image, packaging and promotion have partial and simultaneous influence on customer purchase decision. Brand image, packaging, and promotion have an important role in shaping customer purchase decision. Brand image, packaging, and promotion are highly connected with customers’ purchase decision and sales. In this research, the writer used quantitative research design and IBM SPSS statistics V. 26. The writer used descriptive and causal approach. The sampling technique used was convenience sampling. The sample size was 97 customers. The results of hypothesis test showed that brand image, packaging and promotion have an influence on customer purchase decision at either partial or simultaneous. Furthermore, brand image, packaging and promotion have 48,7% influence on customer purchase decision. This research also passed the validity, reliability, normality, multicollinearity, heteroscedasticity, multiple linear regression test and the equation is Y = 2.546 + 0.433 X1 + 0.306 X2+ 0.302 X3. Recommendations for PT. Bunda Sari Legit (Affinois) include can utilize a variety of social media in the promotion of instagram especially regularly and consistently, Affinois can improve the design of attractive packaging and job training for employees./