The present work was to determine the optimum sintering system and properties of the nanometer tetragonal polyerystallihe zirconia green body by the aqueous gel tape casting process. The results show that the microstrueture of the green body is even, the calcining process is accomplished with organic burning out, the separated preheating procedure is diminished. Therefore, the efficiency was remarkably improving and the resources was saved. On the basis of DTA-TG analysis, the proper calcining system was obtained. The green body ofzirconia turned into the high performance films, consisting oftetragonal polycry, stalline zirconia after sintering for 6 h at the temperature of 1773 K.