關於股東會決議之瑕疵，依我國目前法律與實務通說下，共有三種類型：股東會決議無效、不存在與得撤銷。惟我國公司法並未規範一旦法院判決認定股東會決議無效、不存在或撤銷股東會決議後之法律效果為何，若將具瑕疵之決議限縮於選任董事之決議上，則不具董事身分之人擔任公司董事一職下，由於訴訟程序冗長，此段期間公司對外之法律關係(或董事代表公司所為之法律行為)、公司與不具董事身分之人間之法律關係及公司後續的程序召集上，其法律效果為何？日本學說上提出「連鎖瑕疵」闡述此問題。我國公司法學者通說採取對外類推適用表見代理、對內適用無因管理之見解；惟本文以為此見解將生諸多疑問，故本文參考英國法、美國法與日本學說上之見解，介紹英國公司法第161條規定並採取「事實上董事理論」以嘗試解決此問題。最後並進一步探究股東會決議瑕疵所產生的後續相關法律問題。 / According to the current law and common practice, there are three types of the defect of shareholder meeting of the company. There are void resolution, no resolution, and annulment of such resolution. However, our corporate law didn’t regulate the results once the court makes the verdict of the above mentioned types of defects of shareholder meeting of the company. If the defect of shareholder meeting of the company could be restrained on the election of directors of the resolution, while the person who was disqualified to act as a director is still in charge, the legal effect of the company’s external legal affairs, also the relationship between the company and the disqualified director, and the assembly of the meeting remain discussible. The Japanese scholars bring up a theory called the chain of defect to elaborate the upper mentioned problem. Our corporate law scholars mainly consider that the legal effect of the company’s external legal affairs should be an apparent agent situation. The company’s internal legal affairs, such as the relationship between the company and the disqualified director, and the assembly of the meeting should think as a management of affairs without mandate situation. However, my article considers that the previous perspective remains plenty of doubtful points. For this reason, my article would refer to the Companies Act 2006 (United Kingdom Company Law), Laws of the United States, and Japan’s legal theories. Moreover, I would introduce the Sec.161 of the Companies Act 2006, and adopt the theory of de facto directors in order to solve the problem. Eventually, I would analyze the extended and related legal problems of the defect of shareholder meeting of the company.