Strontium　sulfosalicylate　crystal　that　polycrystalline　material　was　synthesized　through　liquid-phase　reaction　was　grown　by　the　falling　temperature　method,　and　the　dimensions　were　about　63　mm×25　mm×3　mm.　The　obtained　products　were　characterized　by　DSC,　IR　and　XRD　techniques.　The　crystallization　experiments　result　indicated　pH=0.60　water　solution　was　the　best　solvent　for　SSS　crystal　growth.　The　solubility　curves　of　SSS　in　both　pH=0.60　and　1.50　water　solution,　and　the　best　growth　temperation　was　between　40-50°C　of　pH=0.60　curve.　The　best　coditions　for　Strontium　Sulfosalicylate　crystal　growth　were　put　forward　and　the　nucleation　procsss　of　SSS　in　the　supersaturated　solution　was　studied.