The invention relates to a device for the suction of excrement, formed by three main parts: an upper part formed by a holding element having a handle for holding the device, and a user interface for switching on the device an intermediate part which is slidingly connected to the upper part via a sliding element, and which has means for generating suction and vacuum, proximity sensors and plugs that prevent the dirt entering inside the intermediate part and a lower part, detachably connected to the intermediate part, formed by an accommodating means housing a disposable excrement receptacle that is foldable or collapsible, and by closing and cleaning elements. The excrement receptacle comprises: a lower opening for admitting excrement and an upper opening for admitting suction air for permitting the passage of a suction force generated by said suction-generating means an internal peripheral wall having a substantially concave lower section and a substantially straight upper section, wherein the peripheral wall is designed to receive and store the particles of the suctioned faecal matter. In addition, the accommodating means comprises: a lower expandable mouth a pair of lower and upper expandable rings which are connected to one another, and which are designed to expand or contract simultaneously with the expandable mouth first sliding closing and cleaning means and second pluggable closing means, designed to close the lower opening of the receptacle and the mouth of the accommodating means, respectively.Un dispositivo de aspiración de excrementos, conformado por tres partes principales: una parte superior conformada por un elemento de sujeción que comprende un asa para sujetar dicho dispositivo y una interfaz de usuario para encender dicho dispositivo una parte intermedia conectada deslizablemente a dicha parte superior por medio de un elemento deslizante, que comprende medio generadores de succión y vacío, sensores de proximidad y obturadores que evitan que la sucie