This paper takes the theme park area of Shenzhen Overseas Chinese Town as an example to conduct a case study of ecological value determination. Based on the CVM payment card questionnaire survey, a stepwise multiple regression model is used to conduct empirical research on residents' willingness to pay. The results show that the per capita willingness to pay for the theme park area of Shenzhen Overseas Chinese Town is 16.08 million yuan, and the ecological value of the area is 964.8 million yuan. Through the study of the ecological value of the theme park area and the case analysis of the theme park area of Shenzhen Overseas Chinese Town, it can be seen that the theme park area has great ecological value.