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F-Mn Co-doped SnO₂ nanoparticles with rutile structure have been successfully synthesized by hydrothermal method at low temperature. In the hydrothermal method, surfactant plays an important dispersion role. The nanostructures have been characterized by means of XRD. XRD results show that the nanostructures are crystalline with rutile structure. The morphology of as-prepared samples was characterized by scanning electron microscopy (SEM). Effects of pH, dopant, surfactant and alkali source on morphology, dispersion, Crystal crystallinity and nanoparticles diameter are discussed.