The detecting mould of the measuring carrier for a display panel,set on the display panel carrier, comprises an external power supplying end,at least one transverse-positioning assembly and at least one longitudinal-positioning assembly, a detector put on the carrier and used for detecting the display panel. At one end face and the bottom part of the detector is provided respectively with a positioning hole respectively nesting on the transverse and the longitudinal positioning assembly to position the detector. A power-supply receiving end is set on the detector, which is connected with the power supplying end to drive the detector to operate. A signal linker is set on the detector for linking with external signal linking seat to transmit signals between interior and exterior of the detector. Advantage: easy mounting and dismounting of detector group onto or from carrier.