Abstract: The common core of English for specific purposes (ESP) refers to the language co nventions and communication skills to be followed by all disciplines and occupat ions in communicating technical information. Technical communication (TC) is a n ew course developed on the basis of common-core concept of ESP. TC int roduces the general conventions and common skills of technical communication, su ch as human values, communicative rhetoric and document design, into ESP teachin g, which is effective on improving students' English proficiency and significant to the orientation of China's college ESP under the new situation.