Abstract: The machine for collecting used cups enables collection of the cups in a container (2) in such a way as to reduce empty spaces between cups and thus better to utilize the volume of the container (2). A inlet for the cups, through which a cup (6) is inserted into the machine, is connected with a container (2) by means of a track, internal of the machine, on which an operative group (1) is positioned, which operative group (1) comprises a tubular body (11) for guiding a cup (6) on to a stack (9) of cups. The operative group (1) is mobile between a loading position, in which a stack (9) of cups (6) is created, and at least one unloading position, in which the stack (9) is unloaded into the container (2).