Abstract: The method envisages that groups of articles (2,22) to be packaged, arranged orderly with a lateral narrowed dimension oriented in the forward movement direction (A), are fed along a feeding line (1). Single packaging sheets (3) are carried beside the feeding line (1), in suitable phase relation with the forward movement of the articles (2,22). The groups of articles (2, 22) are transferred crosswise to the feeding line (1), so as to hit the sheets (3) with the lateral narrow extension of the groups of articles (2,22) in order to fold the sheets (3). The folded edges of the sheets (3) are joined along the opposite side of the groups of articles (2,22), presenting a corresponding lateral narrow extension.