With the rapid development of science and technology, the Internet era is coming and the internet economy is changing, and the Internet is having an increasingly widespread impact on people's production lives. The Internet economy, which symbolizes the development of the Internet industry based on the Internet, is rapidly developing in China. Today, the Internet is already becoming more prevalent, and people have been able to access relevant information, shopping, and entertainment through the Internet, which has led to the full development of the socio-economic economy and improved the efficiency of development across society, which has played a role in the better development of the Chinese economy. This article analyzes china's economic development of the Internet, explores the positive and negative impacts of the Internet economy on the Chinese economy, points out the problems of the Internet economy, and suggests corresponding to future internet economic development.With the continuous development of information technology, the Internet economy has become a new boost to China's economic development, combining with all walks of life, making full use of the advantages of the Internet to promote economic and social development.

With the development of Internet economy and information technology, people trade more and more frequently on the Internet, and online payment has also developed rapidly. On this basis, third-party payment came into being and swept across all major fields in a short period of time, playing a very important role in people's economic life. However, due to imperfect laws and regulations and loopholes in platform construction, there are still some hidden dangers in the use of third-party payment. One of the biggest hidden dangers is the problem of information security. In the process of using third-party payment, personal information disclosure and malicious tampering of payment information will occur. Starting from the development background of third-party payment, this paper analyzes the existing problems and causes, and puts forward corresponding strategies, so as to better promote the healthy development of third-party payment in China. Key Words China， Payment Method, Third-party Payment. * Doctoral