At present, with the increasing contribution of the company to the world economy, the company system will develop towards the weakening of the intensity of state intervention and the strengthening of shareholder autonomy. No matter how the company develops, it cannot avoid the intervention of the state, so there will always be an untouchable red line between the autonomy of regulations and the mandatory norms of the corporate law. Then, the legal risks and legal design were studied caused by the conflict between the company's articles of association and the mandatory norms of the company law reflected in specific cases. Only by based on the specific cases and legal provisions and achieving the two-way linkage of "theory + practice",the diving line can be grasped the boundary between the company's articles of association and the law.