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The main objective of this work is to develop a novel electrochemical molecularly imprinted polymer(MIP)for detection of sunset yellow.A novel water-compatible MIP of multi-walled carbon nanotubes@polydopamine(MWNTs@PDA)composite is prepared by auto polymerization in water system using sunset yellow as template and dopamine as functional monomer,which can interact with sunset yellow through hydrogen-bonding and electrostatic interaction(Figure 1).The water-compatible MIP suspension was coated on the surface of glassy carbon electrode(MIP-MWNTs@PDA/GCE).The resulting MIP-MWNTs@PDA/GCE shows good performance when it is used for the differential pulse voltammetric determination of sunset yellow.Under the optimized conditions(i.e.pH 6.0,0.2 M HAc-NaAc buffer),the peak current is linear to sunset yellow concentration in the ranges of 2.2 nM – 3.87 μM with the detection limit is 1.4 nM(S/N = 3).The electrode has been successfully applied to the determination of sunset yellow in some soft drinks,and the recoveries for the standards added are 96.3%- 104.8%.