The invention discloses an adjustable electronic temperature-controlled three-dimensional sprayed concrete performance testing experimental device, which includes a control system, a specimen clamping system, a heating system, a spraying system and a testing system. The specimen clamping system includes a A three-sided frame, each of the four corners of the three-sided frame inner cavity is provided with a specimen holder, each specimen holder is equipped with a clamping head, the heating system includes a heating plate and a heater; the injection system includes a second Horizontal hydraulic prop, blower fan, collecting box, feed pipe, rotary nozzle, vertical hydraulic prop and vertical hydraulic push rod, and the test system includes a laser speedometer, an impact force sensor, a stress sensing sheet, and a temperature sensor; the present invention also includes Its experimental method is disclosed. It can simulate the high geothermal environment of the roadway, conduct three-dimensional concrete spraying in the roadway in real time, and perform the performance test of the spraying impact force, rebound rate and initial bond strength of the shotcrete under the influence of high temperature conditions.