Building collapse has caused disasters during the strong earthquake happened on September 21st, 1999. People apparently understand what destroyed buildings are due to natural disasters and what others are due to poor designed or quality control. Some constructors and professional engineers have failed into legal problems because they have responsibility to those collapse buildings. According to the pathetic lesson, we should do research to reform the current Professional Engineering (PE) system to enhance PE capability and responsibility. To improve the current PE system, research is essential. Many factors must be considered in this research such as the eligibility, branches, examination, management of PE association, and evaluation. The eligibility of the applicant is evaluated according to his formal education and experience. The branch is to decide how many kinds of PE license issued. The examination of the PE license is to determine the subjects of the PE examination according to the realistic needs. The management of PE association and evaluation are to do the quality control of the professional engineers. Doing this research shall have references from some other countries. But, please note that implanting the complete PE system from any other country is not a proper way. In Taiwan student who lacks experience is eligible to take the PE examination. Once he has the PE license; he still can NOT independently do his job and take his responsibility. At this point of view, the system is not reality. Moreover, □ rent-license" is another key problem in the management of the current PE system. If any disaster like the 9-21 earthquake happened, the society blames professional engineers. The issue may not only be individual engineer's problem but the management's. Different countries or areas have different requirements according to their own local characteristics. For example, the United States and Canada have different PE systems in different States. Especially in the United States, the Federal Government does not have any organization to execute the PE system but each State Government has. By studying the PE system in the Manitoba of Canada; we will propose an effective proposition to the decision-makers as reference .