This study is concerned with the characteristics of occupational injuries and sick leave for gas cylinder handling workers. Possible incidents and sick leave have been identified and analyzed for 223 occupational accidents in the gas cylinder handling work. Management level of accidents for prioritizing prevention measures is induced for the combination of accident agencies, types, and gas cylinder handling work processes. Accidents occurring during the specific gas cylinder handling work process showed different characteristics, depending on the type and agency of the accident. Most critical accidents that require corrective actions for prevention were slips and trips caused by floors, walkways, steps, or ground surfaces and overexertion and bodily reaction and posture caused by gas cylinder in the manual delivery of heavy cylinders process. Also, fall to lower level caused by floors, walkways, steps, or ground surfaces in the loading to and unloading from vehicles process and struck by or against caused by fixtures in the manual delivery of heavy cylinders process were also ranked high. The findings of this study can be used to develop more effective accident prevention policies to reduce occupational accidents in gas cylinder handling works.