The　rapid　analysis　of　6-benzylaminopurine　(6-BAP)　residue　by　surface-enhanced　Raman　spectroscopy　with　a　portable　Raman　spectrometer　is　reported.　The　results　showed　that　the　Raman　signals　of　6-BAP　can　be　significantly　enhanced　when　mixed　with　a　gold　nanoparticle　colloid　substrate.　The　typical　Raman　shifts　of　6-BAP　extraction　were　at　1002,　1318,　and　1336　cm(-1)　and　the　intensities　of　normalized　characteristic　band　at　1002　cm(-1)　(I-1002　to　I-738)　showed　high　correlation　with　6-BAP　concentrations.　The　concentration　linear　range　was　0.1-5.0　mu　g/mL.　The　coefficient　of　determination　(R-2)　was　about　0.99,　and　calculated　RSDs　below　10%.　The　SERS　data　matched　well　with　the　HPLC　results.