We analyzed the characteristics of man-hours in construction site manager focused on job position and information media for communicate on management task, using the data obtained through self-reporting surveys.As a result, project manager and deputy project manager tended to handle atypical tasks in construction planning, responses of architect and client, and cost management, while other staff tended to handle quality management. We classified information media into paper media and electronic media. Although we found progress of use electronic media in process management, we concluded there was still much room for improvement to electronic media of construction management.