PURPOSE: To easily execute the batch grasp of user right and to reduce the maintenance manhour with respect to user right managing information by providing a user right managing table to a host computer.

CONSTITUTION: This user right managing system is constituted of a terminal equipment 1 including a CRT device 11 and a using information input means 12, the host computer 2 and the user right managing table for collectively managing respective user using right. The host computer 2 is provided with a user right registering means 21 for registering a new user in the table 3 from the terminal equipment 1, a user right changing means 22 for changing user right and a user right judging means 23 for judging the validity of a using request inputted from the input means 12 while referring the table 3. The table 3 consists of a user-sorted management table 31 for registering the password and right class (sort code of using right) of each user and a function-sorted management table 32 for registering a usable function code in each right class.