A data line repair structure for a liquid crystal display panel. The data line repair structure includes a first repair line parallel to a scan line and crossing the first end of a data line; a second repair line parallel to the data line and connected to a gate driving chip; and a third repair line parallel to the scan line and crossing the second end of the data line. When the data line has a broken point, the source driving chip transmits a data signal to a pixel electrode through the first repair line, the second repair line, and the third repair line.