This article，analyzing the evolution of Thailand’s foreign investment law and policy. In line with Thailand’s current investment facilitation measures and foreign investment preferential policies to analyze Thailand’s foreign direct investment environment and the Thai foreign investment，this article will explain its admittance of foreign investment industries，foreign equity limit and other key issues.

In the last part，the paper combining with the case to analysis Thailand’s foreign investment risk，puts forward strategies in Thai investment legal risks from the perspective of practice.