A traveling path planning method of an automatic harvester , comprising: (a) detecting and forming, by a detection device , a basic farmland information of a farmland; and (b) receiving and analyzing, by a path planning device , the basic farmland information, and planning a traveling path of the automatic harvester according to the basic farmland information, wherein the basic farmland information comprises size, surface area, shape, coordinates, or crop category of the farmland; when the automatic harvester is driving, generating, by an obstacle driving detector , an obstacle information when an obstacle is detected, and sending the obstacle information to the path planning device ; determining, by the path planning device , whether the automatic harvester stops, keeps driving, or re-plans another traveling path accordingly; characterized in that , the traveling path planning method further comprising: presetting, by a path setting module of the path planning device , a traveling mode of the automatic harvester based on the shape of the farmland and generating a traveling information, causing the automatic harvester to drive based on the traveling information, the traveling information comprises a traveling path of homocentric-squares-shaped or zigzag-shaped, or a path being spiral from outwards to inwards in circles, the traveling path of homocentric-squares-shaped is selected when the farmland is square, and the traveling path of zigzag-shaped is selected when the farmland is rectangular. (a) detecting and forming, by a detection device , a basic farmland information of a farmland; and (b) receiving and analyzing, by a path planning device , the basic farmland information, and planning a traveling path of the automatic harvester according to the basic farmland information, wherein the basic farmland information comprises size, surface area, shape, coordinates, or crop category of the farmland; when the automatic harvester is driving, generating, by an obstacle driving detector , an obstacle information when an obstacle is detected, and sending the obstacle information to the path planning device ; determining, by the path planning device , whether the automatic harvester stops, keeps driving, or re-plans another traveling path accordingly; characterized in that , the traveling path planning method further comprising: presetting, by a path setting module of the path planning device , a traveling mode of the automatic harvester based on the shape of the farmland and generating a traveling information, causing the automatic harvester to drive based on the traveling information, the traveling information comprises a traveling path of homocentric-squares-shaped or zigzag-shaped, or a path being spiral from outwards to inwards in circles, the traveling path of homocentric-squares-shaped is selected when the farmland is square, and the traveling path of zigzag-shaped is selected when the farmland is rectangular. when the automatic harvester is driving, generating, by an obstacle driving detector , an obstacle information when an obstacle is detected, and sending the obstacle information to the path planning device ; determining, by the path planning device , whether the automatic harvester stops, keeps driving, or re-plans another traveling path accordingly; characterized in that , the traveling path planning method further comprising: presetting, by a path setting module of the path planning device , a traveling mode of the automatic harvester based on the shape of the farmland and generating a traveling information, causing the automatic harvester to drive based on the traveling information, the traveling information comprises a traveling path of homocentric-squares-shaped or zigzag-shaped, or a path being spiral from outwards to inwards in circles, the traveling path of homocentric-squares-shaped is selected when the farmland is square, and the traveling path of zigzag-shaped is selected when the farmland is rectangular. <EOS>