中國大陸進行改革開放以來，已成為外資的主要投資地區，在上海證券交易所及深圳證券交易所掛牌的股票市值，近年來於世界交易所組織的排名有顯著的上升。而中國大陸在2010年3月31日推出的有價證券融資融券制度（又稱信用交易），雖然在先進的證券市場中，融資融券係成熟的交易制度，但在中國大陸推出後卻產生交易量極不活絡、無券可融、控管過嚴等問題。 本文嘗試著先行介紹融資融券交易的沿革、定義、美國及台灣管理的模式，進而剖析探討中國大陸融資融券交易的開戶條件、證券商資格標準、有價證券得為融資融券標準、保證金帳戶制度、擬籌設的證券金融公司制度、風險管理制度、賣空監管制度、融資融券之法律關係等，作為本文之主軸。 全文共分五章，除於第一章說明本文之研究動機與目的、研究範圍與內容外，分別介紹證券市場信用交易之概述、中國大陸信用交易法令規範、融資融券交易之法律行為及實務作業探討，作為第二章至第四章之內容，最後於第五章提出檢討及建議，俾作為中國大陸融資融券交易法制之研究。 / Using the comparative law approach and the economics ananysis of law approach, this thesis studied securities law of margin trading in Mainland China. The margin trading mechanism was established in the Article 142 Securities Act 2005, and began on 31st Jan. 2010. This thesis first studied the definition, history and structure of margin trading. Then, by deploying economic analysis of law approach, it studied the margin trading rules of U.S, Taiwan and Mainland China in a comparatively way. Material issues were researched in the thesis: cash account, margin account, initial margin requirements, minimum maintenance requirements, securities lending, securities financing corporations, segregation of customer’s securities, short sale regulations, and guarantees. Based on above, this thesis reviewed the margin trading rules in Mainland China through legal, administrative, and market aspects. Finally, we proposed reform suggestions of the margin trading rules in Mainland China.