To provide an easy-to-manufacture press fitting joint structure with an excellent economical effect, good finishing accuracy and excellent strength, and a press fitting jointing method in jointing members constituting a metallic element.

In this structure, a first member 2 having a hole 13 to which an inner wall with an identical cross section of a press fitting portion is formed, and a second member 4 having a shape similar to the hole 13 and a fixed cross section are used. A press fitting tolerance of the second member 4 to the hole 13 of the first member 2 is 0.1 mm or more, and the second member 4 is pressed in the hole 13 of the first member 2 by predetermined pressure. A current is applied between both the members to generate electric resistant heat at the joint of the members. The second member 4 is press-fitted in the hole 13, and a joint interface is formed at the joint face between the second member 4 and the inner wall of the hole 13, and this joint is brought into a solid phase state.