Molecularly imprinted polymer based on magnetic graphene oxide nanoparticles (MIP) was prepared for quercetin.1-2 A sol–gel process was used to prepare MIP with 3-aminopropyltriethoxysilane (APTES) as a functional monomer, tetraethoxysilane as a cross linker, and Quercetin as target molecule. This MIP was prepared on magnetic graphen oxide substrate. The MIP was characterized by FT-IR, TGA, SEM and UV-Vis spectroscopy. The adsorption capacity investigated under different conditions such as pH, Quercetin concentration, time and amount of adsorbent.