PROBLEM TO BE SOLVED: To provide a combine enabling manual feed threshing work to be performed under appropriate control.SOLUTION: The combine includes: a threshing control section 51 controlling conveyance speed of a grain culm conveyance device FA and rotation speed of a threshing device 7 a manual feed threshing grain culm feed section 8 for manually feeding grain culms to the grain culm conveyance device FA by a worker during manual feed threshing work and a manual feed threshing control command output section 64 outputting a first control command to the threshing control section 51 when detecting presence of the worker in a first area A1 containing the manual feed threshing grain culm feed section 8 based on estimation result of a worker position estimation section 66 estimating a position of the worker and a position of a human body part of the worker, and outputting a second control command to the threshing control section 51 when detecting presence of a human body part of the worker in a second area A2 set nearer to the threshing device 7 than the first area A1. The threshing control section 51, in response to the first control command, changes the conveyance speed of the grain culm conveyance device FA from a reaping threshing speed to a manual feed threshing speed, and, in response to the second control command, stops the grain culm conveyance device FA.
