The invention relates to a system for collecting horse manure, comprising a manure-collection member (2) in the form of a tube having a manure outlet (70) connected to the inlet of a collection container (7) and an opening (13) designed to be positioned at the animal"s anal area in order to convey the manure into the container. The aforementioned collection member (2) includes a first collection portion (8) including the outlet (70) which is connected to the inlet of the collection container (7) and a second collection portion (11) including the opening (13), which second portion is hinged to the first portion (8) so that it can move from a rest position to a collection position in which the opening (13) is positioned at the animal"s anal area and in which the opening is positioned above the outlet so that the manure can fall into the container under the influence of gravity. In addition, a turbine (9) can be mounted inside the first collection portion (8) and driven by an electric motor (10) in order to help move the manure into the container (7).