The invention discloses a rollover prevention base of a robot. The rollover prevention base comprises a rectangular base. A partition plate is fixedly arranged inside the base. The base is partitioned through the partition plate into an upper layer cavity and a lower layer cavity. A plurality of wheels are fixedly arranged on the bottom face of the base. A plurality of distance measuring sensors are fixedly arranged on the two sides of the lower layer cavity of the base. Probes of the distance measuring sensors are exposed out of the bottom face of the base. A plurality of inclined gas ejector pipes are fixedly arranged on the two outer side walls of the upper layer cavity of the base in a plugged mode, nozzles of the gas ejector pipes face downwards, the gas ejector pipes are fixedly connected to a gas collecting pipe, the gas collecting pipe is connected with a nitrogen storage tank through a pipeline, an electromagnetic valve is fixedly connected to the portion, between the gas collecting pipe and the nitrogen storage tank, of the pipeline, and the electromagnetic valve and the distance measuring sensors are electrically connected through a wire and a control circuit board; the gas collecting pipe, the electromagnetic valve and the nitrogen storage tank are arranged inside the upper layer cavity of the base, and the nitrogen storage tank is fixed to the partition plate through a fixing support. The rollover prevention condition of the robot can be effectively reduced.