Abstract: The magnetic molecularly imprinted polymers(MIPS) and magnetic non-imprinted polymers(NIPS, without PGG) were prepared by precipitation polymerization using Fe₃O₄ magnetic nanoparticles as carriers, 1, 2, 3, 4, 6-penta-galloyl glucose(PGG) as template molecule and acrylamide (AM) as functional monomer. Their morphology and structure were characterized, and the adsorption performance was investigated. The results of SEM, TEM, FT-IR, and XRD showed that MIPS was spherical nanoparticle with Fe₃O₄ as the core and SiO₂ as the outer layer, with densely packed pores on the surface. The analysis of magnetic properties shows that MIPS has good paramagnetism and can be separated under applied magnetic field. The results show that the adsorption capacity of MIPS for PGG is obviously stronger than that of NIPS.The adsorption process of PGG by MIPS was fitted well with the Langmuir adsorption isotherm model, with a maximum adsorption capacity of 67.02 mg/g. The adsorption process of PGG by MIPS was very consistent with the second-order kinetic model. In the reuse performance experiment of MIPS, the adsorption capacity of the fifth cycle 53.16 mg/g, could still reach 83.78% of the first adsorption capacity. This indicated that the reuse performance of MIPS was better and could achieve specific adsorption of PGG.