High-speed signal isolation device

The invention discloses a high-speed signal isolation device. The high-speed signal isolation device comprises a chip output device, an integrated load and a test machine; the test machine includes a test transmission line and a voltage probe resistor; the test transmission line is a test transmission line from the output end from the chip output device to one end of the voltage probe resistor; the integrated load includes a load capacitor and an isolation/load resistor; the isolation/load resistor is connected between the output end of the chip output device and the test transmission line; and one end of the load capacitor is connected between the output end of the chip output device and the isolation/load resistor. With the high-speed signal isolation device of the invention adopted, the problem of an abnormal high current phenomenon caused by the test machine can be effectively solved, so that a bulging phenomenon can be alleviated.