We report on the reversible, electrical and optical switching on silver 3-phenyl-l-ureidonitrile complex thin films.The films can switch from a high impedance state to a low impedance state with an applied electric field at the thresholdof 3.5 × 107V/m. Furthermore, the films can be switched back to the original state by treating the samples at about80℃. The optical recording is fulfilled using a semiconductor laser with a wavelength of 780nm. Erasure can beaccomplished by bulk heating or by the laser working with the power beneath the threshold. No loss of the organic wasfound in the experiments. This material may have a potential application in ultrahigh data density storage.