1938- 194 1 year, Taisheng bank Yong Yuchang was established in Hong Kong and became the administrator.
194 1- 1944, moved to Macao, and worked with friends to organize positions such as Hengfeng Aerospace, Heshenghang, Dafeng Bank and Henderson Land Company, and served as the supervisor and general manager.
1944- 1946, director, vice-chairman and chairman of Jinghu Hospital Charity Association.
1946- 1947, organized a new China bank.
1947- 1948, organized uob as the general manager and chairman.
1948- 1950, served as director, vice president, vice president and president of the Chinese Chamber of Commerce in Macau.
1950, director, vice president and honorary consultant of Chinese Education Association of Macau.
After 1950, Ma Wanqi was the president of Macau Basketball and Volleyball Association, Table Tennis Association and Chess Association, and the chairman of the board of directors of Haojiang Middle School, Peidao Middle School, Shangxun Night School, Dazhong Middle School, Qingzhou Primary School and Jingping School.
65438-0952 Director of Macao Labor Education Association.
1984- 1988 served as the chairman of the board of directors of the University of East Asia in Macau.
1976 to 1996. He was a member of the first to fifth Legislative Councils of Macao. He received an honorary doctorate in business administration from the University of East Asia in Macau and an honorary doctorate from Jinan University.
In February 2002, he was awarded the Grand Lotus Medal of Honor by the Macao Special Administrative Region Government. He has served as the director and vice chairman of South China Enterprise Company, Guangdong Overseas Chinese Investment Company, Guangdong International Trust and Investment Company, Guangzhou International Trust and Investment Company and China International Trust and Investment Company in the Mainland. He used to be vice chairman of Jinan University and Zhong Kai Agricultural College, honorary president of Guangzhou University, Nanhai Middle School and He Xiangning Memorial School; He used to be a member of the Standing Committee of the All-China Federation of Industry and Commerce, vice chairman and honorary president of Guangdong Federation of Industry and Commerce. President of China Literature Foundation.
The Ma family in Ma Wanqi is as famous as He in He Houhua and Cui Shi in Chui Sai On, and is called "the three major families in Macau".