The invention relates to a fire-fighting individual-soldier posture sensing device. The fire-fighting individual-soldier posture sensing device comprises a body position sensor, a vibration sensor, a processing unit, a sound and light alarming unit, an emergency alarming button and a wireless transmission unit, wherein the body position sensor is used for detecting the body position of a fire-fighting individual soldier; the vibration sensor is used for detecting the walking or running of the fire-fighting individual soldier; and after being fused with the information of all the sensors, the processing unit can judge multiple static and moving postures such as standing (squatting), walking, running, prostrating, supinating, left side lying, right side lying, handstand falling, prostrated creeping, supine creeping, left-side-lying creeping and right-side-lying creeping, and carry out long-distance transmission on information by the wireless transmission unit. When the fire-fighting individual soldier is in a static state for exceeding the time limit, or presses down the emergency alarming button in danger, the sound and light alarming unit emits sound and light alarms and carries out long-distance transmission on alarming information by the wireless transmission unit. The fire-fighting individual-soldier posture sensing device has the advantages that a commander can monitor the fire-fighting individual-soldier posture remotely in real time and find the dangerous situation in time, so that the search and rescue efficiency is increased and the fire-fighting damage ratio is reduced.