This harvesting device (36) for harvesting root crop comprises a support (42) defining an uprooting position of the harvesting device, an uprooting section (46) comprising at least two uprooting units (48). One of the uprooting units (48) is mobile with respect to the support between an active position in which the uprooting unit is able to uproot root crop in a field having a field surface (18) when the harvesting device is in the uprooting position, and an inactive position in which the uprooting unit is unable to uproot beet crop in the field when the harvesting device is in the uprooting position. Application to sugar beet uprooting devices.
