承销业务、经纪业务、自营业务是券商的主要业务类型 ,文章从这三个业务类型入手 ,对我国证券市场上的券商违规违法案例进行了分析 ,指出了违规违法行为的危害性 ,并从内部人控制问题、资产质量、融资渠道及信息披露等方面 ,阐述了券商违规违法产生的原因 ,并由此提出了相应的对策。 Underwriting business, brokerage business and self-service business are the main business types of securities firms. Starting with these three business types, the article analyzes the cases of illegal and illegal brokerages in the securities market in our country, points out the harmfulness of illegal activities, Internal control issues, asset quality, financing channels and information disclosure, etc., expounds the reasons why the brokerage companies violated the rules and regulations, and put forward the corresponding countermeasures.