Free Trade Area (FTA) reached and validated between ASEAN and China has promoted plant and plant products trade dramatically between Thailand and China since 2000. As the agricultural products trade has kept increased rapidly, the pests management and quarantine become serious and challenging to these two countries in terms of ecological security and biosafety. This paper analyzed the situation of plant and plant products trade between Thailand and China from 2003 to 2012, including the kinds and amounts of plant and plant production, epidemic situation analysis which carried by import and export plant and plant products. There are over 400 kinds of plant and plant products which were trade between Thailand and China, and over 1000 genera (species) pests were intercepted including 79 genera (species) quarantine pests. In this paper, the bilateral arrangement related to plant quarantine was also analyzed. The current issues and problems of quarantine pests research, management and quarantine are articulated and suggestions how to improve or upgrade related researches and quarantine level were proposed in this paper.