Using online games for religious missionary activities is not allowed and has many problems. It should not be advocated or envisioned, so its effectiveness and risks cannot be positively evaluated. In China, it is not allowed to preach, hold religious activities, establish religious organizations, or set up religious venues in schools and other educational institutions other than religious schools. Online games and other platforms are public cultural and entertainment spaces and are not suitable for preaching. This practice will bring serious risks: 1. Violation of laws and regulations: It undermines the rule of law in society and interferes with the normal education, culture and social living environment. 2. Confusing values: It may mislead groups such as young people, blur their understanding of scientific knowledge, rational thinking and correct values, and is not conducive to their healthy growth and all-round development. 3. Cause social instability: It is easy to cause conflicts and contradictions between different beliefs and concepts, which is not conducive to social harmony and stability. We should abide by national laws and regulations, maintain a healthy, civilized and harmonious social environment, and resist any use of non-religious venues and informal channels for preaching.