Due to the poor working environment, work without a certain protection and facing changes in the social structure, change the mindset of employment, a great demand in service industry, and the labor force structure changes, with low birth rate, and the level of education are generally improving. As a result, labor force willing to work for construction industry gradually reduced, causing a potential gapping crisis. The utilities industry is more difficult, dangerous and laborious work. Furthermore, the working environment is poor, the social and economic status is low and its work nature is more physique demanding and professional. In this regard, the main characteristic of the professional and technical manpower in the utilities engineering industry is mostly the male workers of 30 to 40 years old, having relevant work experience of five years or more and with education at high school or below. Under the shortage in labor force, there are structural changes in industry. In addition, under the structural change in labor force, employees are in favor of engaging in service industry, and science and technology and electronics industry and they are not willing to work in the engineering and manufacturing industry. Under this labor force situation and the unique requirement of professional and skilled manpower resources, which cannot be met with by the general labor, have made the lack of professional and skilled people in the water and electricity engineering become more critical. This research targets at a case study on manpower requirements in a large scale and representative company in the water and electricity industry in Kaohsiung. The study framework bases on the structure of labor requirements in industry, the characteristics of the utilities industry and statistical analysis of the supply and demand in technical manpower of the targeted companies of the study cases, so as to prove increasing acute shortage in professional and skilled manpower in the utilities industry, and its impact on the utilities and construction industries in future to help resolving the utilities industry business hardship.