The invention discloses a crop mixer which comprises a support, a mixing cavity, a storage box, a light-emitting stripe, a control board, a rotating shaft, an engine, a transferring mechanism, a pouring plate, a roller, a connecting rod, a rotating head, a spiral rod, a drawer, a handle, a power output rod, a fixing handle and detection holes. The mixing cavity is fixedly connected to the top of the support, the storage box is fixedly connected to the top of the mixing cavity, the light-emitting stripe is arranged at the front end of the storage box, and the control board is arranged at the front end of the top of the support. The crop mixer has the advantages that storage space is enlarged through the drawer, crop collection is facilitated, and the problem about small storage space is solved; connection of the roller and the spiral rod can be fixed through the fixing rod, potential safety hazard brought by falling off of the roller and the spiral rod during mixing and stirring is prevented, and the problem that parts are easy to fall off in mixing in the prior art is solved.