Abstract: The flow behaviors of waxy crude at low temperature(below the wax appearance temperature)are influenced by thermal and shear history.However, researches mainly lay emphases on the experiments and qualitative discussions of the concrete crude oil for a long time, and have not ascend to the quantitative level having universal significance.In this paper。the up—to—date research of the relation between the flow characteristics of waxy crude and thermal and shear history are briefly introduced, and the suggestions to further studies in this respect on quantitative level are proposed.