The purpose of this study was to find out how the preparation of authentic assessment instruments at SMK Prapanca 2 Surabaya, the implementation of authentic assessments of Chinese subjects at SMK Prapanca 2 Surabaya, and the use of authentic assessment results of Chinese subjects at SMK Prapanca 2 Surabaya. The research method used in this study is a descriptive qualitative approach. The research was conducted at SMK Prapanca 2 Surabaya in class XII. The subject in this study was a teacher of Mandarin class XII. The results of this study are that the teacher has implemented authentic assessment well but is constrained by time and infrastructure. The results of this authentic assessment can make it easier for teachers to map students' character so that teachers can easily determine what method is suitable for use.