To provide a job information management system designed so as to be able to accurately and also freely perform attendance and absence information processing without needing connection to a working schedule etc.

The job information managing part 10 of a user side provided with a portable communication terminal 11 and a relay base station 22 as components transmits various pieces of data about jobs to the host computer 31 of the job information processing part 30 of a server side through a communication line network 40 to be stored. When the terminal device 11 accesses the host computer 31, the host computer 31 performs arithmetic processing on the basis of the various pieces of data about the stored jobs and returns processing results about an item name corresponding to access contents to the terminal device 11.