With continuous development of E-commerce, Trusted Third Party (TTP) not only provides security and privacy authentication, but also covers a series of services, including recommendation, transportation, insurance. Therefore, this article also recommends various types of TTP service framework systems. This article seeks to discover the influence of TTP on consumer trust intentions in various service types. It focuses on identifying the differences in TTP service framework systems in E-commerce environments in China and Australia, along with their functional mechanisms. During the preliminary data analysis, it not only validates the completeness of TTP service framework systems, it also shows the obvious differences between consumers in China and Australia in selecting TTP services. With the continuous development of cross-border trade between China and Australia, further understanding of consumers' online consumption behavior, especially when determining TTP function mechanisms and differences in behavior patterns, is of great significance to both theoretical and industrial cycles.