The invention discloses a bolt pipe joint assembly sealing performance testing device. The device comprises a small printer, a vibrating motor, a booster pump, a pressure sensor and a sound-light alarm device. The small printer is arranged on the outer side of a device body, a clamp is fixedly installed on the top of the vibrating motor, the small camera and an LED lighting lamp are embedded into the top of an inner cavity of the device body, the booster pump is arranged on the top of an oil tank, a hose is connected with the booster pump through a pipeline, a check valve, the pressure sensor, a pressure gauge and electromagnetic valves are arranged on the pipeline, and carbon fiber heating wires and a temperature sensor are embedded into an inner cavity of the oil tank. The bolt pipe joint assembly sealing performance testing device is provided with the carbon fiber heating wires and the vibrating motor, high-temperature, high-pressure and vibrating working environments are simulated for testing, the small printer is embedded, testing and printing are carried out at the same time, an automatic alarm device is arranged, and an alarm is automatically given when the pressure changes at a static pressure testing stage.