The invention relates to a degassing bucket with a flocculating agent mixing function and aims to solve the problems that an existing degassing bucket is large in size and low in efficiency. The degassing bucket with the flocculating agent mixing function comprises a bucket body, the top of the bucket body is provided with a degassing outlet, and the bottom of the bucket body is provided with a cane juice outlet. The degassing bucket is characterized in that the bucket body is internally provided with a spiral diversion trench from top to bottom, and the bucket body is provided with a cane juice inlet connected with the top end of the diversion trench; the bottom of the diversion trench is provided with a plurality of juice flowing holes, the bucket wall is further provided with a flocculating agent filling opening, and the flocculating agent filling opening is connected with the diversion trench. According to the degassing bucket, the cane juice is injected into the bucket body from the cane juice inlet, flows downwards along the diversion trench and flows downwards from the juice flowing hole in the bottom of the diversion trench in the flowing process so as to increase the contact area between the cane juice and air, and degassing efficiency is improved; the flocculating agent is injected to the diversion trench from the flocculating agent filling opening to be mixed with the cane juice.