To make effective use of resources by withdrawing oil from an oil- stuck solid as waste oil to use the waste oil as fuel and the oil-withdrawn solid as a regenerated raw material.

This system 1 for recycling the oil-stuck solid by removing the stuck oil comprises a compression step A to compress the oil-stuck solid and withdraw oil as the waste oil, a cleaning step B to clean the compressed solid and remove the oil left behind at the step A, a waste oil treating step C to regenerate the waste oil withdrawn at the steps A and B into heavy oil and a raw material treating step D to make the solid cleaned at the step B the regenerated raw material.