Without marvelous and efficient machine tools providers, machine tool industry in Taiwan cannot bloom as fifth worldwide rank with output value of USD 3.3 billion in 2005. Entitled as ?Mother of Industry? or ?Working Mother Machine, approximate 650 machining tool providers support 17,496 registered corporations sharing 19.5% Taiwan?s total company quantity. Meanwhile, most machine tool firms are small and medium enterprises and as much as 75% of these providers are located in the Central Taiwan. During past 60 years, machining tools providers have struggled against many severe challenges, such as oil crisis and mass immigration of low-end manufacturing enterprises to China and south-east Asia in 1980s and 1990s, but they are still gaining significant success. Facing the challenge of globalization, these small and medium enterprises must reform and reinforce their competitive advantage for survival. How to perform serial and necessary organizational changes is the key for way to success. By method of historical material analysis, case study, and in-depth interviews, my research analyzes three competitive machinery tool manufacturers which are chosen from Taichung metropolitan area, for the understanding of model of organizational change and solutions. To sum up, organizational change is a process of comprehensive transition by four factors including technology change, structure change, strategy change and culture change. In these cases, manufacturers are required to take proper strategies suit for their own distinctive circumstance and closely tie up with organizational changes in terms of technology, structure and culture when they are building up their international competitiveness.