Circuit board flat cable detection device and detection method

The invention relates to a circuit board flat cable detection device and method, and the device comprises a signal output module, an output terminal, a signal receiving module, a detection seat, a detection result output module and a power supply, the detection seat comprises a housing, the upper end of the housing is provided with a detection port, the housing is internally provided with an insulation pedestal, and a plurality of probes are vertically inserted in the pedestal. The upper end of each probe extends out of the detection port, positioning pins are respectively arranged on the upper surface of the shell at two ends of the detection port, the lower end of each probe is electrically connected with the signal receiving and comparing module, the detection seat is detachably connected with a detection clamp, and the detection clamp comprises a base and a gland. A plurality of grooves matched with the outer contour of the circuit board are formed in the base, a through hole is formed in each groove, flat cable connecting points are all right opposite to the through holes when the circuit board is embedded into the grooves, protruding blocks are arranged on the pressing cover, and when the pressing cover and the base are oppositely combined, the top portions of the protruding blocks are partially inserted into the corresponding grooves. Positioning holes corresponding to the positioning pins are formed in the base and the gland.