Quick and efficient oil washing method and oil washing device

The invention relates to a quick and efficient oil washing method and an oil washing device. The method includes the following steps that: a natural rock sample is machined into a rock core required for an experiment; the rock core is arranged in a container containing an oil washing agent so as to be subjected to heating and oil washing; the rock core is installed in an oil discharging process, the oil washing agent can be adopted to displace crude oil, and an oil washing passage can be established; the rock core is arranged in the oil washing device, and is subjected to oil washing through the heated oil washing agent, and then the rock core is arranged in a spin-drying machine so as to be subjected to spin-drying, and such operation is circulated until an oil washing qualification standard is met; and the rock core is dried under high temperature in the oil washing device. The oil washing device includes an oil washing agent chamber containing an oil washing agent; the oil washing agent chamber, a rock cor