Work vehicle coordination system and work vehicle

A work vehicle coordination system includes a traveling work parameter setting section (41) included in each work vehicle for setting a traveling work parameter to define a traveling work of each work vehicle, a communication processing section (71, 72) for effecting data communication between/among the plurality of work vehicles, a traveling work parameter acquisition section (42) for acquiring the traveling work parameter set in each work vehicle, a difference data generation section (43) for generating difference data indicative of a difference between/among the traveling work parameters set in the respective work vehicles, and an informing section (56) for informing the difference data.