本文主旨為運用中英美官方檔案，探討中日全面戰爭爆發後，王芃生主持國際問題研究所，於國民政府戰時情報系統整合過程中，其主管任務與角色定位，同時為因應日軍封鎖中國國際運輸，以及日軍轉向南進與緬、印戰略地位提升，有關西南國際戰略通道之情蒐，與法屬越南、泰國、英屬新加坡及緬甸等當局多方交涉；其次探討王芃生繼策動滇緬路開放之後，對緬、印反日宣傳之投入；最末討論王芃生與英國特勤處對日情報與宣傳合作始末，國研所於中國政情動盪與美、英盟國實力消長格局下，擴展對外合作面臨的内外困境，從而析論王芃生領導情報工作在戰時國府外交實務上可能發生的作用，及其所反映國際情報政治運作的特質。

This paper draws mainly upon government documents of the Republic of China, the United Kingdom, and the United States of America, to examine the work accomplished and the role played by Wang Pengsheng in intelligence cooperation and integration of the KMT Government. Wang led the Institute of International Relations (IIR) under the direction of Chiang Kai-shek in the beginning of China’s all-out war against Japan. He was responsible for collecting international intelligence concerning the strategic status of Burma and India in the midst of intensifying Japanese military advance, and participated in multilateral negotiations among French Indochina, Thailand, British Singapore and Burma. Secondly, this paper examines the involvement of the IIR led by Wang Pengsheng in anti-Japanese propaganda in Burma and India before and after the outbreak of the Pacific War. Finally, it discusses the impact of Wang’s activities upon the Nationalist Government’s plan concerning its cooperation with the intelligence communities of its allies, mainly the British Special Operations Executive (SOE). It discusses too the internal and external hardships suffered by the IIR during China’s political turmoil against the background of the changing power relations between Britain and America. Through these analyses, this paper delineates the practical impact of Wang’s work on the Nationalist Government’s pragmatic diplomacy during the war as well as explores the characteristics of international political secret service.