The invention relates to a tea oil refining method which comprises the following steps: preheating equipment; closing a preheating device; performing degumming processing on raw oil at room temperature by utilizing a degumming tower; then performing deacidification processing by utilizing an acid extractor, performing decoloration processing by utilizing a decoloration tower, and finally performing deodorization processing by utilizing a decoloration tower; and supplying the oil temperature of the deodorized oil subjected to the deodorization processing for the temperatures required by all processes of the subsequent parts. The tea oil refining method is implemented in a completely closed system and is simple in process; the entire refining process only needs direct heating at one part; the processed high-temperature semi-finished product deodorized oil is used as a heat source for other processes at lower temperature; and by calculation, 15-20% of heat energy can be saved, the energyconsumption and the production effect are reduced, and low-carbon production is realized.