Abstract:When fire breaks out in urban high-rise buildings, there's an apparent need for indoor fire-fighting positioning service. This paper first introduces the current indoor fire-fighting positioning technology, and then details the principles of the waist plan and the foot plan of the positioning technology based on inertial navigation. Lastly it gives contrasting demonstrations between current mainstream indoor fire-fighting positioning technologies and then proposes innovative solutions to improve the indoor positioning technology based on inertial navigation.