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Novel magnetic molecularly imprinted polymers were prepared using bilayer modified Fe3O4 magnetite as the magnetically susceptible component, oxytetracycline and chlortetracycline as mixed-template molecules, and methacrylic acid as functional monomer.The magnetic polymers were applied to the separation of tetracycline antibiotics from egg and honey samples.The extraction and clean-up procedures were carried out in a single step by blending and stirring the sample, polymers and extraction solvent.The analytes can be transferred from the sample matrix to the polymers directly or through the extraction solvent as medium.When the extraction was complete, the polymers adsorbing the analytes were easily separated from the sample matrix by an adscititious magnet.The analytes eluted from the polymers were determined by high liquid chromatography spectrometry.The recoveries ranging from 76.2% to 95.8% were obtained with relative standard deviations in the range of 3.1-13.2%.The limit of detection was less than 0.2 ng g-1.