A liquid crystal panel, the testing circuit and the testing method thereof are disclosed. The testing circuit includes shorting bars, bonding pads, and switches. The switches are arranged between the shorting bars and the bonding pads. In the testing process, the switches are turn on upon receiving the testing signals so as to transmit the testing signals from the shorting bars to the bonding pads. When the testing process ends, the switches are turn off to prevent the liquid crystal panel from being affected by the signals of the bonding pads during the normal screen display of the liquid crystal panel. In this way, the manufacturing cost is reduced.