Methanol engine oil heating device and methanol engine

The utility model relates to the technical field of automobiles, in particular to a methanol engine oil heating device and a methanol engine, the methanol engine oil heating device comprises an oil pan, an oil drain plug and an electric heater; the oil pan is used for containing methanol engine oil, and an oil drain plug opening is formed in the oil pan. The oil drain screw plug penetrates through the oil drain screw plug opening, is provided with a threaded connection structure and can be screwed to an oil pan; the electric heater is arranged in the oil pan, the electric heater is fixedly connected with the oil drain screw plug, and the electric heater is used for heating the methanol engine oil; according to the utility model, the electric heater and the oil drain plug are integrated and are designed into an integrated structure, so that the purpose of facilitating installation is achieved, the oil pan structure does not need to be changed on a large scale, and the utilization rate of the original structure