Deng Yongxiang's parents divorced when he was 8 years old. Father Deng Qi gambles for a living and is a Cantonese opera fan. His mother, Luo Lian; After the divorce, he came to live in Hong Kong with his mother. When his mother was a servant, Deng was often severely scolded by her mother and eventually ran away from home and lived on the streets. Later, he was taken in by Jianghu artists and studied art. During the performance of Teahouse, he was appreciated by Lao Xing Hezun's Xiji. After he was recommended to study in He Shounian, he made great progress through traditional kung fu training. A year later, he went to Shantou to perform in the name of "peaceful reunification" and made his debut on the stage. Regardless of his singing skills, he was praised as a "prodigy". At that time, he was good at imitating Ma Shiceng, so his master changed his stage name "Sun Ma Shi Zeng".

Later, he performed at the Taiping Theatre in Hong Kong, which was packed and the theatre turned a profit. Deng Yongxiang performed on the Leigh stage at the age of 10, and got to know her biological mother. At the age of 17, he returned to "freedom" (leaving his original owner) and studied with Xue Juexian. Later, he went to Shanghai to enjoy famous Peking Opera actors Lin Shuyuan and Gai Jiaotian. And learn Beijing opera from Lin, singing in a unique way. My future career was smooth sailing, taking making movies and opera records as my career.

Although Singapore and Malaysia are small and thin, they are good at performing "Guan" and so on, and they are also quite accomplished in Beijing opera. They studied in Shanghai, and became close friends with Lin Shusen, Kirin Tong and other Peking Opera artists. Basically, the "Guan" of Singapore and Malaysia is based on Beijing Opera. Sun Mashi was once one of the contemporary actors who was good at playing ancient songs, but he was quite "Jinghua". Its singing style is unique, and it is called "New Horse Style". In fact, Singapore and Malaysia can learn from others' strengths in singing, and then form their own characteristics. For example, he borrowed from the singing skills of the southern voice of the little star, but in order to adapt to the stage performance, he sprayed a lot of words so that the pronunciation could spread far. He used the luck singing method of Beijing opera for his own use (called "the sound of the back of the head"), with a strong spirit, strong resonance and rich drawl. When he performs with Xue Juexian, he often stands on one side of the stage and sings with his back to the microphone to show his rich voice.

In the 1950' s, Sun Mashi made a film like other famous actresses at that time. In addition to Cantonese opera opera film, he also acted as a comedian, and worked with Deng Jican on A Fu Duo and two stupid films. 1960, Sun Mashi founded Yongxiang Records Company and recorded many of his famous songs and Peking Opera records.

He once revealed that he lost tens of millions before 1960, so he chose to invest in Macau Entertainment Co., Ltd. 1%. Later, he invested 40,000 feet of land in Saigon, opened a Chu Liuxiang restaurant in Shau Kei Wan and owned Yongxiang Records Company.