Investors are used to making financial decisions by referring to online reviews. Studying the influencing factors of investor sentiment and trust has become the focus of academic circles to avoid financial risks. This paper uses the research method of combining text mining and measurement to explore whether there is emotion and trust transfer among investors in the fund management situation. The results show that: (1) In the Internet financial platform, the emotions expressed by previous financial users' reviews will be transmitted to later users. (2) There is trust transfer between financial users in Internet financial management. (3) Different emotions reflected in previous reviews of financial users have different influences on the transmission of trust. The final research conclusion of this paper can contribute to the research gap of online investment and financial management in existing literature. At the same time, this study has certain practical significance for individual investors, government and fund management institutions to avoid risks and strengthen supervision and service quality.