In this research, the electrical properties and shape of TiO2 nanoparticles doped with nickel ferrite can be effective in improving the performance of pigment-sensitized solar cells. TiO2 doped with nickel ferrite was fabricated for mass production by a simple, cost-effective and applicable method. Nickel ferrite was made using the sol-gel method and then mixed with TiO2 at a ratio of 0.02 grams of nickel ferrite to 1 gram of TiO2 and used in pigment-sensitized solar cells. Considering the manufactured cells and comparing the photovoltaic results of the solar cell sensitized to the reference simple pigment with the solar cells made based on contaminated TiO2, it was observed that the highest short circuit current, open circuit voltage, filling factor, output power And the yield was related to cells made based on TiO2 with nickel ferrite impurity. It was observed that the addition of nickel ferrite improves the loading of pigment and the transfer of guided electrons. The open circuit voltage in the simple reference cell varied from 0.565 V and in the manufactured cells from 0.600 to 0.659 V. The efficiency of the manufactured cells has increased compared to the reference cell, from 2.653% in the reference cell to 6.306% in the cell made with TiO2 doped with nickel ferrite heated at 1100℃. it is arrived. This increase in efficiency is due to the effect of the magnetic field produced by magnetic nanoparticles in TiO2 composition. Through investigations, it was found that the internal magnetic field, which originates from NiFe_2 O_4 in TiO2 electrodes, is the main factor that improves the ability to transfer produced electrons and reduce charge recombination in pigment-sensitized solar cells. It can be Also, the use of NiFe_2O_4 in the photoanode causes more pigment absorption and further improves the photon utilization rate and provides fast collection channels for light-excited carriers and improves cell performance.