Most previous studies have held that the system of Tubo gaoshen (an honorary identity mark) was an imitation of a similar system in the Tang dynasty, referring to the latter’s official costume decorations for its stratified office-holders. These studies have not given due attention to the characteristics of the title itself. From the perspective of the change of the Tibetan name and based on existing research results and historical records in both Tibetan and Chinese, this article tries to offer a new understanding and preliminary discussion on the development of Tubo gaoshen and several related issues. We find that there are two paths in the evolution of its name: One is from Sug to Yi Ge or Yig, the other is from Yig tsang to Yig tshangs. The former is used to denote a concrete gaoshen and can be added as a prefix while the latter denotes the abstract idea of gaoshen and no attribute can be used before it. When the two are used together, the latter is used before the former, such as in: yig tshangs pa ni zangs kyi yi ge gtong/ (As to the gaoshen [yig tshangs], [he] is awarded a bronze yi ge).