Abstarct: In this work, a simple, sensitive, and efficient ligandless liquid-phase microextraction method baxsed on a deep eutectic solvent for preconcentration of trace amounts of lead in edible oils is proposed. Flame atomic absorption spectrometry (FAAS) is used for the final analysis of lead. The green solvent of a deep eutectic type is formed by mixing choline chloride and tetra-n-butyl ammonium hydroxide (TBA). A 1:1 mixture of a deep eutectic solvent and 2% ethanol (200 µL) is added to an oil sample. The mixture is vortexed and transferred to a water bath and stirred for 5 minutes. After completion of the extraction, the phases are separated by centrifugation, and the enriched analytes in the deep eutectic solvent phase are determined by FAAS. In order to obtain the maximum extraction efficiency, the effects of some parameters such as the molar ratio of choline chloride/TBA (composition of the solvent), volume of ethanol as the diluent solvent, amount of sample, extraction time, and extraction temperature are investigated. Under the optimized conditions, a linear range of 0.041.20 µg.mL-1, a limit of detection of 0.015 µg.mL-1, and a preconcentration factor of 24.7 were obtained. Also the relative standard deviations for six replicate determinations of lead were obtained to be 3.85%, 1.20%, and 1.10% in 0.08, 0.5, and 1.0 µg mL-1, respectively. The developed method was also successfully applied for the determination of lead in different edible oils.