The invention relates to the technical field of vehicle safety emergency equipment, in particular to an emergency escape system. The emergency escape system comprises a built-in gas circuit mechanism, a system shielding valve, an electromagnetic valve and a vehicle door mechanism which are connected in sequence, wherein the electromagnetic valve is used for controlling the vehicle door mechanism to be started and shut down; an emergency gas circuit mechanism is connected in parallel between a forced door opening of the electromagnetic valve and the built-in gas circuit mechanism; the emergency gas circuit mechanism is connected with the system shielding valve; the system shielding valve is used for controlling the emergency gas circuit mechanism to be started and shut down according to the on/off state of the built-in gas circuit mechanism. By adopting the emergency escape system, the start and shutdown of the emergency gas circuit mechanism can be controlled according to the on/off states of the circuit and the gas circuit of the built-in gas circuit mechanism, so that rapid and reliable automatic starting of the vehicle door mechanism can be realized in the presence of power and gas, in the presence of power and absence of gas, in the absence of power and presence of gas, and in the absence of power and gas, and immediate escape of people in the vehicle is ensured; when the vehicle door mechanism is in a normal state, the system can shield automatically; the emergency escape system has the characteristics of sensitive reaction, short door opening time, safety, reliability and the like.