The BCT (Oral iBT), a Computer Adaptive Test(CAT), is an international, standardized test in Chinese language proficiency that focuses on testing non-native Chinese speakers’ abilities to use the Chinese Oral language in real business or common working environments, and that evaluates the language tasks they are able to complete. Following the principle of practicality, oriented towards speaking and listening, and emphasizing abilities in the workplace, this test aims to recreate actual situations in the workplace and takes practical content for communications as the method of examining test takers’ abilities to use Oral Chinese to meet their needs in the working environment conducted via Internet, according to their characteristics and occupation.