Some evaluation has been carried out in Vocational High Schools (VHSs), but most of it focuses on the documents or passive data rather than the processes happening in VHSs. Thus, this research focuses on the evaluation of VHS performances where the process is initiated with identifying the constructs and developing the instruments of performance evaluation for VHSs with Technology and Engineering expertise programs. Based on the problems found in the field, before conducting the evaluation, the researcher needs to, at first, develop the instrument of evaluation through three stages of development. The first stage is analyzing the concepts related to the evaluation by examining the factors affecting VHS performances. In the second stage, instrument development and instrument analysis (content validation) are conducted with the help of experts. The third stage is performance evaluation in VHSs located in Yogyakarta. The evaluation employs a set of instruments developed by the researchers. This research has produced a set of instruments for performance evaluation, which can be used extensively in VHSs. Based on the evaluation, it is found that the aspects of general management and academic management of the VHSs being studied are considered "Good".