The purpose of this study is to explore the efficiency of implementing performance assessment in classroom management program of pre-service teachers. Class management program emphasizes to build students' multi and practical abilities, and performance assessment just has the characteristics. Therefore the researcher implements assessment performances in a pre-service teachers' classroom management program and then investigates the effect of the program. This study uses questionnaire and document analysis to understand the effectiveness of curriculum implementation. In the scale part, the researcher adopted the Scale of Teacher Classroom Management Strategies Inventory designed by Chen Mu Jin in 1999 and used t-test to compare the pre and the post score of the scale. The result was found that the effectiveness of implementing performance assessment in classroom management program was great. The total score and sub-scale scores were promoted, including of arranging classroom environment, communication with students, supervising students' activities, building classroom' rules, treatment disorder behaviors. But the sub-score of utility punishment and reinforcement wasn't promoted obviously. Document analysis section, the researcher collected the documents after the implementation of the course and discussed the effectiveness of the course. The result was found: 1. The effectiveness was different from the different types of performance assessment. Pre-service teachers felt the effectiveness of performance assessments in order is class management plan, class activity designing, decoration of classroom, and drawing up classroom rules. 2. All the different types of performance assessment can effectively constructing different levels of pre-service teachers classroom management ability, but designing performance assessment into practice is not easy. Performance assessment also increases the loading of pre-service teachers.