中共與泰國於1975年建交後，雙方關係發展漸趨密切。1999年所簽署之《中華人民共和國與泰王國關於二十一世紀合作計畫聯合聲明》，明確指出雙邊關係的發展方向，兩國不斷推進在政治、經濟、軍事、及社會等各領域之合作。本論文主要探討新世紀迄今兩國在此四項領域之關係發展。 2001年雙邊簽署關於戰略性合作的《聯合公報》，2007年簽署首份《中泰戰略性合作共同行動計畫》，2012年簽署第二份《中泰戰略性合作共同行動計畫（2012-2016）》，並發表《中華人民共和國和泰王國關於建立全面戰略合作夥伴關係的聯合聲明》，雙邊關係再創高峰。 身為東協創始會員國的一員，泰國與中共密切合作以促進東協與中共之關係，並持續為地區之和平、穩定及繁榮而努力。泰國對東協及中共採取靈活外交政策，以獲取自身政治及安全利益之考量不言而喻。 分析顯示1999年所簽署之二十一世紀合作計畫聯合聲明，的確成為拓展雙邊關係之政策指導，論文中將探討中共與泰國於新世紀初期之關係進展，並分析在此時期影響雙邊關係之相關因素。 / The relations between the People’s Republic of China and the Kingdom of Thailand have developed steadily and closely since the two countries established diplomatic ties on July 1, 1975. The signing of the joint statement on a plan of action for the 21st century in 1999 has made clear the future direction of bilateral cooperation. The two sides continued to push forward cooperation in political, economic, military and social fields. The main contention of this thesis is about the development of these four dimensions from 2000-2012. The PRC and Thailand have continuously signed the joint communique for strategic cooperation in 2001, the first joint action plan on strategic cooperation in 2007, and the second joint action plan (2012-2016) in 2012. They also signed the joint statement on establishing a comprehensive strategic cooperative partnership to further promote and greatly enhance the bilateral relations. As an original member of ASEAN, Thailand works closely with the PRC to promote ASEAN- PRC relations, and continuously contributes to peace, stability and prosperity in the entire region as well. However, it is clear that Thailand has implemented active foreign policies toward ASEAN and the PRC to achieve its political and economic interests. The analysis shows that the two sides expand their relations under the guidance of the joint statement on a plan of action for the 21st century. This thesis is to study the development of the new relations between the PRC and Thailand in the 21st Century, as well as to analyze the factors cultivating bilateral relations during this period.