The invention discloses a simulated infant human body experimental model. The simulated infant human body experimental model comprises a skeleton system, a balance weight layer, a functional layer and a skin layer, wherein the balance weight layer is arranged in a cavity of the skeleton system; the functional layer is arranged on the outside of the skeleton system; the skin layer is arranged on the outside of the functional layer; the skeleton system has a retractable structure; and the functional layer comprises a heating layer, a heat-insulation layer, an insulated layer and a humidifying layer which are successively arranged from inside to outside. The skeleton system has the retractable structure, and the height of the human body model can be regulated; the functional layer can control the temperature to be within a normal body temperature range, temperature difference between different parts of a human body can be embodied, a human body perspiration function can be simulated, and physiological phenomenon of human body perspiration can be simulated; and the skin layer can breathe freely, and has high mechanical strength, individual parts can be subjected to micropore treatment to meet high requirement of breathability, weather fastness, water repellency and electric insulation performance are good, and circuit accidents can be completely eradicated effectively.