Abstract: A device for transporting and ejecting small space payloads, in particular picosatellites, including a tubular body provided with a device for attachment onto a launch vehicle, the body including at least two longitudinal guide rails which can receive a satellite fixedly arranged inside the body in a storage position during transport and which can be moved along the guide rails towards a front end of the body during ejection, an ejection mechanism including a device for translatably moving a satellite in a longitudinal fashion, a drive device connected to the movement device and suitable for engaging with a satellite, and a device for controlling the ejection mechanism.