AGRICULTURAL WORK ASSISTANCE SYSTEM, AGRICULTURAL MACHINE, AND AGRICULTURAL WORK ASSISTANCE DEVICE

An agricultural work assistance system includes an input to input dimension information of a working device coupled to an agricultural machine and a work condition for performing agricultural work on an agricultural field by the agricultural machine and the working device, a route creator to create a traveling route of the agricultural machine on a map indicative of the agricultural field on the basis of the dimension information of the working device and the work condition, an output to output the traveling route, and a dimension determiner to receive the dimension information of the working device input by the input, determine whether the dimension information satisfies a predetermined restriction condition according to a kind of agricultural work performed by the working device, and refuse to receive the dimension information in a case where it is determined that the dimension information does not satisfy the restriction condition.