Method for repairing pixel defect of liquid crystal panel and liquid crystal panel

The invention provides a method for repairing a pixel defect of a liquid crystal panel. The method comprises the following steps of providing the liquid crystal panel, wherein the liquid crystal panel comprises a plurality of pixel units; each pixel unit comprises a main pixel and a sub-pixel, and at least one in the plurality of pixel units is provided with a to-be-repaired main pixel defect or sub-pixel defect; judging a defect type of the pixel unit with the defect and carrying out dark repair, and adopting a first repair method to carry out dark repair when the defect type is the main pixel defect; adopting a second repair method to carry out dark repair when the defect type is the sub-pixel defect. The invention also provides the liquid crystal panel. According to the method for repairing the pixel defect of the liquid crystal panel, a dark repair process of the liquid crystal panel can be effectively reduced, the production cost is saved and the product quality is improved.