A split rim for pneumatic tire, comprising a disk part having a seat part allowing a tire corresponding bead part to be seated at the radial outer end thereof and first and second pieces connected to the disk part and having cylindrical parts coaxial with the disk parts, wherein the cylindrical part of the second piece can be inserted into the cylindrical part of the first piece, and the cylindrical parts of the first and second pieces overlapped with each other in the inserted state are connected to each other at an overlapped part through a connection means.