To provide a pipe sealing connecting structure without requiring precise dimensional accuracy of a component.

A pipe sealing connecting structure includes a short cylindrical joint body 1 for inserting a tip P₀ of a connecting object pipe P, a first seal 8 for sealing between an outer end inner peripheral part 5 of the joint body 1 and a tip outer peripheral surface P₂ of the inserted pipe P, a plurality of tip sealed-shaped rivets 9 connected by penetrating through the joint body 1 and the pipe P from the radial direction, and second seals 13 each interposed between an outer end flange part 10 of the rivet 9 and an opening peripheral edge part 12 of a through-hole 11 of the joint body 1.