投资数百万入股,未办手续竟落空。股东资格认定的标准是什么?怎样区分出资入股与其他投资行为?可以说股东资格的认定在实践中存在诸多争议与难点。本文试从一案例出发,分析有限责任公司股东资格认定的标准和较易混淆的出资入股与合作投资的关系,以期明确股东资格的准确认定。 Invest millions of shares, did not go through formalities actually went to nothing. What are the criteria for the identification of shareholders? How to distinguish between investment and other investment behavior? It can be said that the identification of shareholder qualifications in practice there are many controversies and difficulties. Based on a case study, this paper analyzes the criteria of shareholders ’qualifications of limited liability companies and the confusable relationship between investment and cooperative investment, with a view to identifying the accurate identification of shareholders’ qualifications.