In　this　paper,　a　convenient　and　self-assembled　hollow　fiber　solvent-stir　bar　microextraction　(HF-SSBME)　device　was　developed,　which　could　stir　by　itself.　In　the　extraction　process,　the　proposed　device　made　the　solvent　＂bar＂　not　floating　at　the　sample　solution　and　exposing　to　air　while　organic　solvents　outside　hollow　fiber　always　wrapped　with　donor　phase　solvent,　which　reduced　the　vaporization　of　organic　solvents.　This　design　could　improve　the　precisions　and　recoveries　of　experiments.　For　evaluating　the　device,　seven　anabolic　steroids　(prasterone,　5　alpha-androstane-3　alpha,　17　beta-diol,　methandriol,　19-norandrostenediol,　androstenediol,　methyltestosterone　and　methandienone)　were　used　as　model　analytes　and　extraction　conditions　such　as　type　and　volume　of　organic　solvents,　agitation　speed,　extraction　time,　extraction　temperature　and　salt　addition　were　studied　in　detail.　Under　the　optimum　conditions　(15　mu　L　toluene,　40　degrees　C,　stirring　at　750　rpm　for　30　min　with　1.5g　sodium　chloride　addition　in　20.0　mL　donor　phase),　the　linear　ranges　of　anabolic　steroids　were　0.25-200　ng　mL(-1)　with　gas　chromatography-mass　spectrometry.　The　limits　of　detection　were　lower　than　0.10　ng　mL(-1).　The　recoveries　and　precisions　in　spiked　urine　and　hair　samples　were　between　73.97-93.56%　and　2.18-4.47%　(n　=　5).　HF-SSBME　method　combined　the　intrinsical　merits　of　hollow　fiber　with　the　superiority　of　the　proposed　self-stirring　device　which　can　be　developed　to　two-phase,　three-phase　and　in　situ　derivatization　modes　with　wide　prospect　of　application.　Besides,　the　pedestal　of　this　proposed　device　can　be　converted　to　fix　stir　bar　in　stir　bar　sorptive　extraction　(SBSE)　method.　(C)　2012　Elsevier　B.V.　All　rights　reserved.