A self-propelled machine of assistance of a maintenance processes of rows - in espalier yarns - comprising a frame with elongated shape that extends between a first end and a second end, a couple of driving wheels to move the machine and a directional wheel. The frame comprises at least one support arm and at least one support plane for an operator functionally connected to said at least support arm, such that said support plane is - in use - in a skim configuration with respect to the ground plane. In this way, the operator on board of the support plane maintains a height next to the ground plane, which is ideal with respect to the row to be processed. The operator it is therefore insulated by the ground and in ideal conditions, especially when the ground is wet, slippery and soft.
