Accounting fraud refers to the behavior that the perpetrator intentionally violates the principle of authenticity in a planned, targeted and purposeful way, and violates national laws, regulations, policies, systems and rules, resulting in the distortion of accounting information. Generally, it has the characteristics of these aspects: behavioral fraud is different from accounting errors; The illegality and irregularity of behavior are different from earnings management; The concealment of behavior makes it difficult for outsiders to find out that the perpetrator uses various tricks to cover up his fraud; The harmfulness of behavior, the actor aims at obtaining illegitimate interests, and causes distortion of accounting information through various means, which ultimately brings serious harm to others, enterprises and even society. The harmfulness of accounting fraud is 1, which affects the national macroeconomic decision-making. Accurate and true accounting information is helpful for government departments to carry out macro-control. The national financial department shall supervise and inspect the financial management of enterprises according to the accounting statements submitted by enterprises; The tax department understands the implementation of tax by reading the accounting data of enterprises. Accounting fraud will lead to serious accounting information distortion, which will make the relevant information reported to the government lose its authenticity, thus leading to the government's macro-control mistakes and affecting the normal operation of social and economic order. If the national economic development plan and macro-control policies are based on false accounting information, they will play a misleading role and cause great losses to the country. 2. Damage to the interests of users of relevant accounting information In the market economy environment, the funds of enterprises mainly come from shareholders and creditors, both current and potential investors and lenders. In order to make reasonable investment and credit decisions, they must have some information to understand the financial situation and operating results of enterprises that have invested or plan to invest. If the financial and accounting information provided by enterprises to the open market is untrue, investors will feel cheated. If the investor in the capital market thinks that the company is using these false accounting information to deceive him, he will not invest in listed companies; Similarly, if the bank knows that the statements provided by the enterprise are false, it will not refinance the enterprise. Therefore, the distortion of accounting information caused by accounting fraud is a serious deviation from the rules of market economy. It will not only seriously weaken the decision-making usefulness of accounting information, endanger the interests of the majority of accounting information users, make the public doubt the basis of accounting integrity, but also fundamentally shake the credit foundation of market economy and endanger the normal operation of macro-economy. 3. If accounting fraud damages social atmosphere and professional ethics, the parties concerned may take advantage of their positions to embezzle, steal, defraud or illegally occupy public funds and public goods in other ways, or they may conveniently handle the property that has been accounted for or the property that should be accounted for but not accounted for in the account books of their own units, and transfer the property of their own units by means of donation, low-price transfer and free rental, so as to obtain personal interests. It leads some units and individuals to seek illegitimate interests, forget accounting professional ethics, breed corruption, lead to distraction and corrupt social atmosphere.