β-NaYF4:Yb3+,Er3+　microrods　were　synthesized　through　hydrothermal　methods.　Polyethylene　glycol　with　molecular　weight　of　6000　was　used　as　surfactant.　A　series　of　transparent　silica　gel　films　with　upconversion　luminescence　property　was　prepared　through　sol-gel　method;　the　prepared　β-NaYF4:Yb3+,Er3+　microrods　were　used　as　activator.　The　silica　gel　films　show　strong　upconversion　emission　under　excitation　of　980-nm　laser　beam.