Abstract: The photoconductivity of mixed composite of magnesium titanate (MgTiO⊂3) and zinc oxide ZnO has been reported with respect to the number of parameters. The sample is prepared by heating the homogeneous mixture of MgTiO⊂3 and ZnO in a cylindrical furnace at 600 - 8000 °ree;C for 45 minute. For the measurement purpose, the cell is fabricated in the form of sandwich. In this type of cell the electrodes are in direct contact with the material. The effect of voltage, temperature and field intensity on photoconductivity have been investigated.