The main structure of the sugar factory plant、Sugar Machinery mostly built with the Japanese occupation era. That wasn’t health and safety laws and other issues when it instaled. But labor safety issues therefore gradually be taken seriously with the development of Taiwan's economy. Old factories, special mechanical equipment and narrow space with complex piping design, and on the security can not be fully in accordance with the regulations set, making machinery and equipment repair and maintenance operations, the industrial safety incidents arising endless. The subjects of this study as an example of a sugar factory: A, safety observation scores, evaluate press room, boiler room, clean room, crystallization chamber room, sub honey room, electrical room and wastewater treatment rooms, seven department personnel during maintenance of the mechanical equipment operation, cleaning and maintenance may the risk of accidents caused by value. B, understand the safety and health knowledge evaluation chief staff of 65 people and 111 people for seasonal workers health and safety knowledge and awareness.The results of this study show the potential hazards of various departments, disaster severity and severity of disasters, mostly maintenance operation exceeds the high risk of harm values in high-risk state. Permanent employees and temporary staff were training, the health and safety knowledge before training improved cognitive than 21%. Permanent employees working seniority and training is proportional to the number of times, The results showed that chief information officers trained more years ago the average score is higher, while in training places Age, years on average, the higher the score the more light.