A system for processing fruit or vegetable products of the type of blueberries and the like, includes a first unit, in its turn having in series at least one loading station, at least one pre-sizing station, at least one pre-selection station and at least one first alignment station. The system further includes a second unit, in its turn having in series at least one second alignment station, at least one optical sizing station and at least one distribution station. Each of the first unit and the second unit has dimensions and space occupation compatible with its accommodation and transport in a single container.