According to several research analyses, the conductivity and transparency of ITO thin films are mainly determined by ITO target and sputtering conditions, where the target quality is the most important factor. To obtain high performance ITO films, it is necessary to prepare high-quality ITO targets. Recent researches on the influence of target quality on ITO thin films have been mainly based on aspects such as target density [5,6], grain size [7], conductivity [8], element content [9,10], target secondary phase [11], and element distribution [12]. Meiet al. focused on the effect of secondary phase shift, element distribution, and tin oxide solid solution in In2O3 of the ITO target on the properties of ITO films [11-13]. Although several literatures have studied the influence of an ITO target on the properties of ITO thin films, there is still a lack of systematic and in-depth research on the influence of target crystallinity on the properties of ITO thin films.