The invention provides an automobile oil pan heating and cooling system and belongs to the technical field of machinery. By means of the automobile oil pan heating and cooling system, the technical purpose of heating engine oil with a low cost is achieved. The automobile oil pan heating and cooling system comprises an inner circulating mechanism enabling cooling liquid to circularly flow between an engine and a turbocharger. The automobile oil pan heating and cooling system further comprises a third pipeline enabling the cooling liquid to flow back to the engine from the turbocharger. The third pipeline is provided with a first switch controlling the pipeline to be connected and a heat dissipating part used for exchanging heat with an oil pan. The structure is obtained by improving an original internal circulating mechanism, the heat of the cooling liquid is sufficiently utilized, it does not need to additionally arrange a heat source, and the cost is relatively low.