In the 21st century now, the condition of the earth is currently experiencing a fairly serious problem, namely the occurrence of global warming. The largest contributor to waste is food and beverage packaging, with the largest number being 146 million tons per year. This means that the green marketing strategy for the mineral water product of the Ades brand has been proven to have led to consumer buying decision behavior to buy the product. This study aims to analyze the effect of green marketing products on consumer buying interest, analyze the effect of consumer buying interest products on consumer purchasing decisions, the effect of green marketing on consumer purchasing decisions and analyze buying interest variables as a mediating variable that has an indirect influence on green marketing and decisions. consumer purchases at Modern Stores in Mojokerto City. The location for collecting research information was in the city of Mojokerto, East Java. Collecting information from 3 modern shops in Mojokerto City which were selected intentionally (purposively). The data processing is carried out in 3 modern stores in the Mojokerto City area, including Carrefour, Superindo, and Sanrio. The reason the researcher chose the 3 stores was with the consideration that these 3 modern stores were implementing green marketing in serving their consumers. The analysis in this study uses descriptive analysis and Partial Least Square (PLS) analysis. The results of the study show that green marketing has a positive and significant effect on buying interest, buying interest has a positive and significant effect on purchasing decisions, green marketing has a positive but not significant effect on purchasing decisions and the buying interest variable can be an intervening variable in green marketing on purchasing decisions. Without the help of other factors, consumer purchasing decisions will stagnate on the results achieved previously.