PROBLEM TO BE SOLVED: To provide a handle device which solves the conventional problems that there is no tea field control machine which can adjust the height of a handle, and for example, it makes troubles when the tea field control machine is mounted on a lightweight vehicle, and there are troublesome situations in each work in the tea field, but handle devices capable of adjusting the height are not distributed to a market.SOLUTION: A tea field control machine comprises: leg frames below which a crawler travel part running with left and right crawlers is equipped respectively and a portal frame constituted of slidable leg support parts provided to the leg frames respectively and a beam part. A handle device provided to each leg frame comprises: a handle fixing part which is detachably attached to the leg frame and a handle support part having an operation handle. Therefore the handle position can be changed.
