This invention relates to a process for packaging an article (4) with a thermoplastic resin film (1) in which the film (1) is rolled on two rolls (2) on both sides so that an intermediate region (1A) thereof may be extended in tension condition between the rolls (2), and article (4) to be packaged is fed through a space between the rolls (2) so as to push against the extended intermediate region (1A) of the film (1) and be wrapped therewith, and overlapped portions (1a, 1b) of the wrapping film (1) are set in parallel with the surface of the article (4) and are fused together, and at the same time are cut so that there may be obtained such a fused adhesion line (5) on the overlapped portions (1a, 1b, 1c, 1d) of the film (1) that extends in the lateral width of the film (1) and is longer in length than the width of the film (1), so that there is obtained the packaged article (4) in which the fused overlapped portions (1a, 1b) of the packaging film (1) is laid along on the surface of the article (4) and, on the other hand, there is obtained an intermediate region (1A) of the film (1) which is extended between the two rolls (2) and has the foregoing fused overlapped portions (1c, 1d).