The invention aims at providing a method for automatically debugging the gray coefficient curve and the white balance of a flat-panel television, including that the actual optical properties of a panel is measured; a chroma analyzer acquires the color coordinates and brightness data on panel, and then sends data to a computer; the computer draws three nonlinear gray coefficient curves R/G/B, implements the linearization on non-linear curves R/G/B, and records and corrects the data; the computer implements the white balance adjustment on the three linear gray coefficient curves R/G/B, and thena gamma curve is obtained, the corresponding correction data is recorded; the computer adjusts the gamma curve to the gamma curve with the curve coefficient of 2.2 and obtains and records the final correction data; and writes the final adjustment data within the memory unit of the computer to the software module of a signal processing board. The method simplifies debugging steps on principle, thus realizing the automatic debugging of the gray coefficient curve and white balance of the flat-panel television.