A video camera, a setting method and an adjusting method thereof are provided. The adjusting method of the video camera is for adjusting an installation position of the video camera on a stand. The adjusting method comprises following steps: A first vector set of a gravity acceleration on three coordinate axes pre-stored in the video camera is obtained. An angle, a direction or a position of the video camera is adjusted. A second vector set of the gravity acceleration of the video camera on the coordinate axes is obtained by an accelerometer. Whether the second vector set is substantially the same as the first vector set is determined. When the second vector set is substantially the same as the first vector set, it is concluded that an installation position of the video camera on the stand is completely adjusted.