This undergraduate dissertation proposal aims to investigate the difference between online shopping and traditional shopping on consumer buying behavior and its impact on national economy. The study will focus on three main online shopping websites: Amazon, eBay, and Alibaba. The research questions include how online shopping affects consumers' purchasing decisions, what is the trend of development and negative or positive aspects of online shopping, and what is the current status of online shopping in the national economy. The methodology includes questionnaires designed for consumers and interviews with online shopping managers. The study will contribute to a better understanding of consumer behavior and its impact on the national economy.