This　paper　proposes　a　path　planning　and　tracking　algorithm　for　Agricultural　master-slave　robot　system.　The　robot　system　based　on　the　algorithm　can　be　applied　to　harvesting,　tillage,　planting　and　cultivating.　The　task　of　master　is　to　cover　the　entire　field　by　complete　coverage　path-planning　method　based　on　sub-region.　At　the　same　time,　the　master　accomplishes　the　work　such　as　harvesting,　tillage　and　planting.　The　slave　mainly　tracks　the　master　and　accomplishes　assistant　work　such　as　transporting　and　refueling.　The　simulation　experiment　verifies　that　the　robot　system　based　on　the　algorithm　has　successfully　done　its　task　and　has　a　better　performance　©　2010　IEEE.