According to official website's inquiry, Yiguang, the country where Kangfu comes from, is located in the most prosperous Tianhe business district in Guangzhou, with a six-star Yiguang and nourishing center. It is a Chinese medical institution specializing in serving middle and high-end people, mainly for Guangzhou, Pearl River Delta and Hong Kong and Macao. Kangfulai Yiguang has three major service systems: one is expert diagnosis and treatment. The establishment of diagnosis and treatment specialty is mainly based on the principle of "combining tradition with modernity, combining diagnosis and treatment with health preservation", and is also based on the professional knowledge of doctors hired by the library.