To provide a bag with a housing body for a tablet terminal that facilitates use of the tablet terminal and enhances convenience of the tablet terminal functions by using the bag body.

A bag body 8 is provided with a tablet terminal housing body in which the tablet terminal housing body 7 having a display window 4 of a tablet terminal display part 3 and the bag body 8 are connected with a flexible connecting belt 9 in the respective bottom face parts 7a, 8a. When the tablet terminal housing body 7 is placed, on the upper face near the bottom face of the laid-down bag body 8, with its upper end in an oblique upright posture slightly inclined outward of the bag body, an extension belt 31 is engaged with the upper end belt 22 fixed to the upper end of the tablet terminal housing body 7 for the purpose of holding the upright posture. The bag body 8 is configured such that the other end of the extension belt 31 and the other end of lower end belts 25, 26 fixed to both lower ends of the tablet terminal housing body 7 are locked with the bag body 8.