Based　on　uncertainty　measurement　theory,　self-blasting　of　explosive　assessment　model　in　sulfide　mines　was　established.　11　main　factors　that　influence　self-blasting　of　explosive　were　taken　into　account,　including　water　soluble　Fe2++Fe3+,　water　content,　water　pH,　pyrite　content　of　ores,　environmental　temperature　in　mining　stope,　temperature　in　blasting　hole,　explosive-filling　technology,　explosive　types,　explosive-filling　time,　ventilation　conditions,　and　locale　management　level.　The　uncertainty　measurement　function　was　obtained　based　on　the　in-situ　data;　entropy　theory　was　used　to　calculate　the　index　weight　of　all　indexes,　and　the　assessment　results　were　obtained　by　using　the　rules　of　credible　recognition　criteria.　The　self-blasting　of　explosive　risk　in　four　typical　high-sulfur　mines　was　evaluated.　The　results　show　that　assessment　results　are　consistent　with　the　actual　instances;　this　new　risk　assessment　method　can　solve　some　uncertainty　problems　in　self-blasting　of　explosive　risk　assessment　on　sulfide　mines,　and　can　be　usefully　applied　to　evaluate　the　self-blasting　of　explosive　risk　quantitatively　in　any　place　containing　sulfide　ores.