The invention discloses a modularized automatic detachable escape device, which comprises a support base, an escape cabin and an ejection module. The support base is provided with a slide rail, and the escape cabin is installed on the slide rail. The ejection module includes a base, an escape cabin, and an ejection module. Inflatable air bag, load bearing plate, piston and gas generator, the base is fixed on the support base, a number of cylinder air chambers are arranged on the side facing the escape cabin on the base, each cylinder air chamber is provided with a piston, and the piston and An inflatable air bag is arranged between the bottom of the cylinder air chamber, and each piston is connected with a bearing plate, and the bearing plate is fixed at the end of the escape chamber, and the gas generator is arranged in the inflatable air bag for receiving the After the signal, a large amount of gas is generated to inflate the inflatable airbag, and push the escape compartment to slide along the slide rail for separation and ejection. The invention is simple in structure and easy to use, and can start the ejection module when a shipwreck accident occurs or an accident signal is received, so that the escape cabin is automatically separated and ejected to protect the safety of personnel.