The purpose of this research is to evaluate manufacturing performance using integrated performance evaluation techniques. Productivity indicates the efficiency of converting inputs to outputs. In the project, different inputs of labor, material, capital, energy and overhead are defined and quantified to form productivity indices. Quality refers to the degree of perfection in marking products. Both levels of process and product are considered from the viewpoints of prevention and failure costs. Flexibility measures the adaptability to various changes in manufacturing environments. Three different types of flexibility measures are considered, they are equipment, product and market. Furthermore, these three measures are integrated to obtain an overall performance evaluation model in order to aid firms in measuring performance as well as in making investment decision on manufacturing systems. Finally, a case example is adopted to validate and illustrate the process and functions of the performance evaluation model being developed.