| Professional judgment of accounting is the offspring of social advancement and accounting development. Now it is one important factor in quality of accounting information. The Western countries as the US began to research professional judgment of accounting from 1960s. But in china, professional judgment of accounting appeared after 1990s, and great importance was attached to it after 2000, when Company Accounting System and more and more Accounting Standards' were issued. The development of economy of integration, internationalization of accounting standards and the conversion of accounting standards mode make encouragement of professional judgment of accounting the tendency in this field. Company Accounting System and Accounting Standards' have offered considerable room for judgment.By drawing on accounting standards, the paper tries to discuss the basic theoretical questions, in order to perfect the accounting theory and guide the practice. By relating to some of listed companies, the paper tries to establish a set of guiding system of professional judgment, and presents advices to improve the capacity for judgment of accountants.The characteristics and contributions of this paper lie in the facts that it discusses, in a relatively comprehensive manner, the basic theoretical questions of professional judgment of accounting, and presents, in particular, to establish a set of guiding system of professional judgment. Therefore, the paper offers some useful theoretical and practical reference for the improvement of enforcement effect. |