To obtain a method and an apparatus for forming a product group of improved cigarettes or the like wherein a cost is low, reliability is high and operation is simple.

A method for forming a product group including a predetermined number N of products comprises steps of sending a first array 5 of products 3 to an input part 7 of a predetermined transfer path P and sending the products in the first array to an output part of the transfer path by a variable-pitch conveyer 12 so that the first array may be converted into a second array 6 of the product group as the products are sent along the transfer path.