Abstarct: Abstract Today, the role of e-commerce as one of the key components of the digital economy is very important in the economic development of all countries in the world, and its deep impact on the society and economy cannot be ignored. Therefore, according to the importance of this issue, in this research, we will model the development of e-commerce with an consolidated approach of system dynamics and econometrics. In this research, three hypotheses were investigated .According to the first hypothesis: Increasing government awareness, entrepreneurs and people over time leads to greater growth in e -commerce supply. According to the second hypothesis: as the quality of e-commerce system increases, e-commerce suppliers also increase. According to the third hypothesis: Increasing the per capita income from e -commerce leads to the increase in e -commerce suppliers. The data used in this study from the E -Commerce Development Center and other valid statistical resources for Iran were collected from 2006 to 2022. The results of the dynamics model of this research system show: Advertisements and government support of e-commerce infrastructure have a significant impact on the development of e-commerce.   ‌