The invention belongs to the technical field of dye sensitization solar cells and particularly relates to a triphenylamine derivative taking (E)-3-((E)-4-(di (4-((E)-4-(dianiline) styryl) phenyl)amino) as an electron donating group and cyanoacetic acid as an electron withdrawing group of furan, thiophene or styryl of benzene ring bridging. The invention also relates to a preparation method and the application of the triphenylamine derivative in a dye sensitization solar cell. The dye sensitization agent provided by the invention is simple in synthesis method, and tests show that the photoelectricity conversion efficiency of the final dye sensitization solar cell is up to 4.97 to 6.10 percent, therefore, the triphenylamine derivative and the preparation method is expected to be applied in the actual production to a certain degree.