Indoor navigation method and device thereof

The embodiment of the invention provides an indoor navigation method and device thereof. The method comprises the following steps: determining the proceeding direction of a mobile terminal under the condition that a blind navigation mode of the indoor navigation application of the mobile terminal is started up; determining a target obstacle in at least one obstacles and acquiring the status information of the target obstacle if at least one obstacle is detected within the range taking the geographical position of the mobile terminal as a center and taking the preset distance as the radius; and outputting the hint for prompting that an obstacle exists at the proceeding direction of the mobile terminal if an intersection point exists at the proceeding direction of the mobile terminal according to the status information of the target obstacle. According to the embodiment of the invention, an obstacle in an indoor environment can be detected accurately, and the collision between the blind and the obstacle can be prevented.