To provide a working vehicle cooperation control system which enables ground work traveling with a center work site and a headland as objects by effective linkage between a host working vehicle and a subordinate working vehicle.SOLUTION: A working vehicle cooperation control system comprises: a host position detection module which detects a position of a host working vehicle 1P； a subordinate position detection module which detects a position of a subordinate working vehicle 1C； a center work site route calculation part which calculates a center work site traveling route which is used for unmanned steering work traveling of the subordinate working vehicle 1C in a center work site CL； and a first steering control part which robotically steers the subordinate working vehicle 1C prior to the host working vehicle on the basis of the subordinate working vehicle position and the center work site traveling route.SELECTED DRAWING: Figure 1【課題】中央作業地と枕地とを対象とする対地作業走行を、親作業車と子作業車との効果的な連係によって実現させる作業車協調制御システムの提供。【解決手段】親作業車１Ｐの位置を検出する親位置検出モジュールと、子作業車１Ｃの位置を検出する子位置検出モジュールと、子作業車１Ｃの中央作業地ＣＬでの無人操縦作業走行のために用いられる中央作業地走行経路を算定する中央作業地経路算定部と、子作業車位置と中央作業地走行経路とに基づいて子作業車１Ｃを親作業車に先行して無人操縦する第１操縦制御部とが備えられている。【選択図】図１
