In this study, we examined the occurrences of serious accidents that occurred from 2009 to 2018 at Silver Human Resources Centers nationwide. As a result, the incidence rate during work was high among males, aged 75 or older, long-term enrolled members and “skilled labor” workers. About 60％ of the accidents during work were caused by “defective protective equipment or clothing”. The accident incidence rate on the way to work was high among women, elderly groups, and long-term enrolled members. Most of these accidents were traffic accidents involving a third party and were caused by “environmental factors”. As the number of late elderly members is expected to increase further in the future at Silver Human Resources Centers, it is desirable to monitor their health and restrict commuting by vehicle including bicycle.