PROBLEM TO BE SOLVED: To provide a spray work vehicle including spray booms which prevents overlapped spray and does not leave an un-sprayed area.SOLUTION: A spray work vehicle performs control work by traveling on a farm field while spraying chemicals from many nozzles 4 arranged on spray booms 5 extended right/left from a vehicle body 1B. Receiving antennas 50 receiving signals from GPS satellites SG1, SG2 are arranged on right/left outermost sides of the spray booms 5. A movement locus of the receiving antenna 50 is stored. When spray is stopped at a farm field end, a machine body is rotated, and then spray is re-started, the appropriate right/left receiving antenna 50 is caused to be located at or near a position of the receiving antenna 50 stored in a previous spray ending and spray traveling is started.SELECTED DRAWING: Figure 11