An electrochemical sensor based on dropped molecular imprinted polymers（MIPs） suspension for dopamine was fabricated.Influences of pH value,concentrations of graphene and MIPs were also optimized.The optimal conditions were as follows:pH value:7.0，concentration of graphene:0.5 g/L,concentration of MIPs:20 g/L.Under the optimal conditions,the prepared sensor showed good selectivity and high sensitivity for dopamine.The DPV peak current is linear to the DA concentration in the range of 2.0×10-7-1.0×10-4 mol/L，with a detection limit（S/N=3） of 6.8×10-8 mol/L.The prepared sensor was successfully applied in the determination of dopamine hydrochloride with recoveries of 98%-105%．