Driving crank for fishing reel

The utility model provides a driving crank for a fishing reel. The driving crank structurally comprises a crank body and a planar tooth. The crank body is mounted on a crank base, transmission teeth meshed with tooth parts of the planar tooth are arranged at the bottom of the crank base, each transmission tooth is in a cone frustum shape with a large outer portion and a small inner portion, and each tooth part of the planar tooth is correspondingly in a cone frustum shape with a small outer portion and a large inner portion. Compared with the prior art, the driving crank for the fishing reel has the advantages of being reasonable in design, simple in structure, convenient to use and the like; gapless tooth surface matching is achieved through improvements on cone frustum tooth surface matching, no rotation gap exists between the driving crank and the planar tooth, impact between the teeth is eliminated, and the service life of products is prolonged.