Pile center positioning device and measuring method thereof

The invention provides a pile center positioning device and a measuring method thereof. The pile center positioning device comprises a base, a dial, at least one level bubble, a calibrated scale and aline hammer, the dial is arranged on the base and is supported by the base, the height of the base can be adjusted in the vertical direction to adjust the horizontal height of the dial, and a centerhole is formed in the center of the dial; the at least one level bubble is arranged on the dial, and is matched with the base to guarantee the upper surface of the dial to be parallel to the horizontal line; the calibrated scale is arranged on the dial; and the line hammer is arranged at the center hole and extends vertically downwards along the center hole. The pile center positioning device is convenient to erect, and has high pile center positioning precision. The pile center positioning device is simple in massive structure, convenient to use, easy to operate, and suitable for large-area popularization and use. 本发明