A method of feeding a packer for rod-like articles of the tobacco industry comprising steps wherein: double-length rod-like articles are supplied in the form of mass flows for two feeding paths (2P, 2P') of a feeding apparatus, whereas in the feeding paths (2P, 2P'): the mass flow of the double-length rod-like articles is converted into a single-layer mass flow (F3D) of the double-length rod-like articles so that the rod-like articles in the single-layer stream (F3D) form single-layer groups of the double-length rod-like articles, the double-length rod-like articles are cut into two individual rod-like articles and the single-layer stream (F3D) of the double-length rod-like articles is converted into a single-layer stream of the rod-like articles comprising single-layer groups of the rod-like articles; the stream of the rod-like articles is conveyed in a forming and transporting apparatus (5, 5'), a two-layer group of rod-like articles is formed from the rod-like articles of the single-layer group of rod-like articles in a forming unit of the forming and transporting apparatus (5, 5'), then the two-layer group of the rod-like articles is transferred from the forming and transporting apparatus (5, 5') to a conveyor of two-layer groups of rod-like articles, whereas the groups of the rod-like articles are transferred from two feeding paths (2P, 2P'), the group of the rod-like articles is transferred from the conveyor of two-layer groups of rod-like articles to the packer, characterised in that in the step of conveying the groups (K, G) of rod-like articles to the conveyor, the groups (K, G) of the rod-like articles are buffered in a buffer (5A, 5A', 5B, 5B') of the forming and transporting apparatus (5, 5') so that the distance among the adjacent groups (K, G) of the rod-like articles is varied. double-length rod-like articles are supplied in the form of mass flows for two feeding paths (2P, 2P') of a feeding apparatus, whereas in the feeding paths (2P, 2P'): the mass flow of the double-length rod-like articles is converted into a single-layer mass flow (F3D) of the double-length rod-like articles so that the rod-like articles in the single-layer stream (F3D) form single-layer groups of the double-length rod-like articles, the double-length rod-like articles are cut into two individual rod-like articles and the single-layer stream (F3D) of the double-length rod-like articles is converted into a single-layer stream of the rod-like articles comprising single-layer groups of the rod-like articles; the stream of the rod-like articles is conveyed in a forming and transporting apparatus (5, 5'), a two-layer group of rod-like articles is formed from the rod-like articles of the single-layer group of rod-like articles in a forming unit of the forming and transporting apparatus (5, 5'), then the mass flow of the double-length rod-like articles is converted into a single-layer mass flow (F3D) of the double-length rod-like articles so that the rod-like articles in the single-layer stream (F3D) form single-layer groups of the double-length rod-like articles, the double-length rod-like articles are cut into two individual rod-like articles and the single-layer stream (F3D) of the double-length rod-like articles is converted into a single-layer stream of the rod-like articles comprising single-layer groups of the rod-like articles; the stream of the rod-like articles is conveyed in a forming and transporting apparatus (5, 5'), a two-layer group of rod-like articles is formed from the rod-like articles of the single-layer group of rod-like articles in a forming unit of the forming and transporting apparatus (5, 5'), then the two-layer group of the rod-like articles is transferred from the forming and transporting apparatus (5, 5') to a conveyor of two-layer groups of rod-like articles, whereas the groups of the rod-like articles are transferred from two feeding paths (2P, 2P'), the group of the rod-like articles is transferred from the conveyor of two-layer groups of rod-like articles to the packer, characterised in that in the step of conveying the groups (K, G) of rod-like articles to the conveyor, the groups (K, G) of the rod-like articles are buffered in a buffer (5A, 5A', 5B, 5B') of the forming and transporting apparatus (5, 5') so that the distance among the adjacent groups (K, G) of the rod-like articles is varied. in the step of conveying the groups (K, G) of rod-like articles to the conveyor, the groups (K, G) of the rod-like articles are buffered in a buffer (5A, 5A', 5B, 5B') of the forming and transporting apparatus (5, 5') so that the distance among the adjacent groups (K, G) of the rod-like articles is varied.