Ma Jiguang is mainly engaged in cosmetic surgery, congenital deformity correction, burn and post-traumatic deformity repair and reconstruction, and injection cosmetology. As a surgeon, he performs thousands of plastic surgery every year. Host the application of botulinum toxin type A in facial beauty research. At present, he is responsible for the clinical application research of injectable human hair keratin soft tissue filling material and the clinical application research of tissue engineering cartilage, a major medical research project of the Ministry of Health, and the president of plastic surgery hospital, Cao Yilin. He has won the third prize of medical achievements and the third prize of scientific and technological progress in colleges and universities. In teaching, as the main member of the tutor group, he helped to train and graduate many master students and doctoral students. At the same time, he also teaches advanced students and national continuing education courses. Participated in publishing more than 20 papers and writing 4 monographs in core journals.