Choo was groomed by his father who instructed him in calligraphy. He graduated from the Nanyang Academy of Fine Arts in 1953 and began his career as a teacher where he later became the principal of Sin Hua School and head of the art education department at Nafa. In 1976, Choo Keng Kwang was honored with the Public Service Medal (PBM) by the late President Benjamin Sheares in recognition of his significant contributions to the art field. Five years later, in 1981, he received the Community Award from the Bundaberg Art Society in Australia. In 1983, he was bestowed with the Special Award at the National Day Art Exhibition. Choo’s dedication to art was further acknowledged in 1986 when he was presented with the Voluntary Service Medal for his contributions to the Singapore ART ’85 – 50th Anniversary, as well as the Society of Chinese Artists Award and the Long Service Award (PBS) for his contributions to education. In 1989, he was chosen as a featured artist for the esteemed Outstanding Singapore Artists Exhibition series, organized by the Ministry of Community Development.