Battery fixing device and vehicle

The invention relates to a battery fixing device and a vehicle. The battery fixing device comprises a battery frame, a fixing seat and a bracket, the battery frame is used for placing a battery, the fixing seat is used for being fixed with a vehicle body, the support is used for being fixedly connected with the battery frame, and the fixing seat and the support are detachably connected. Wherein one of the fixed seat and the bracket is provided with a positioning concave part, and the other one of the fixed seat and the bracket is provided with a positioning convex part matched with the positioning concave part. By using the battery fixing device, when the battery of the vehicle is installed, the fixing seat can be fixed on the vehicle body of the vehicle in advance. And then, the battery frame and the bracket which are connected are mounted, the mounting position of the bracket can be determined to be accurate only by aligning the positioning concave part with the positioning convex part, and at the moment, t