In short, Professor David Ding is a pioneer and leader in the global financial field. In the early 1980s, he went to the United States to study finance, and successfully obtained almost all the business licenses required by American finance/securities industry. Later, I worked on Wall Street, involving all aspects of finance, and was a frequent visitor to many international investment banks such as Merrill Lynch, Goldman Sachs, Blackstone, Morgan and Nomura. Since 1990s, Professor Ding has been invited to inspect and study China's financial/securities market for many times, and put forward many useful suggestions to the State Council and other departments, including 1993' s suggestions and plans to strengthen macro-control and rectify financial order, especially to rectify and standardize the futures market. In the mid-1990s, Professor Ding took the lead in introducing the international financial license and qualification system, including S7, CFA and so on, into China, and trained a large number of financial talents for China and the United States. Professor David Ding has been devoted to the exploration of financial laws and the research of financial science for a long time. A series of brand-new financial knowledge systems, theoretical systems and management systems such as financial tree system, system finance, financial ecology, financial physics, financial science and financial science system have been established one after another. For decades, he has been teaching hundreds of different high-end financial courses for many universities and financial institutions at home and abroad, such as Peking University and Tsinghua, and has published a large number of teaching materials. All previous financial crises have not yet broken out, and he made the results public, but he did not make unremitting efforts to stop these crises. CCTV, People's Daily, Sina, China Daily (English), Sohu and many other media have a lot of reports and interviews. The People's Daily also invited Professor Ding to open a column "Questions and Answers on Financial Knowledge". As an academic member of Baidu Encyclopedia, he defined and revised a large number of financial terms, which benefited countless netizens. In addition, he is the consultant of Boao Forum for Asia (founding), the chief planner of investment and financing of Boao Investment Holding Co., Ltd. (Boao Watertown) and a member of Boao Watertown Development Strategy Committee.