Abstarct: In this experimental research, cadmium indate (CdIn2O4 ) thin films have been prepared on the glass substrates by sol-gel dip-coating, sol-gel spin-coating and spray pyrolysis techniques. And powder samples have been prepared by sol-gel method. Structural and optical properties of CdIn2O4 thin films and for characterization of thin films and powder samples by X-Ray Diffraction (XRD), UV-Visible spectrophotometer and Field Emission Scanning Electron Microscope (FESEM) measurements have been characterized. Thin films prepared by sol-gel dip-coating and spin-coating methods were annealed at different temperatures form 300 to 450˚C for 1 hour. Powder samples by sol-gel methods, were annealed at various temperatures (700-900˚C) for 2 hours. Also for as grown samples prepared by spray pyrolysis technique. The effects of the annealing temperatures (350-400˚C) and solution consentration were studied. XRD results show that all laxyers have a polycrystalline cubic structure with (311) preferred orientation. The transmittance of samples is consistent with the annealing temperature, and also it is clear that with increasing solution consentration of samples has reduced. Also average transmittance of the dried samples by IR lamp was haier than those by electrical oven. FESEM images showed that for grown thin films and powder samples, at the optimum temperature, crystalline and uniformity of the thin films and powder samples improved.