A method of recognizing an object, and a device therefor are provided. The method includes obtaining first sensing data from a first sensor that senses the object, obtaining second sensing data from a second sensor that senses the object, obtaining a first object recognition reliability for the object and a second object recognition reliability for the object respectively based on the first sensing data and the second sensing data, based on the first object recognition reliability and the second object recognition reliability, matching object information of the object recognized using the second sensing data to the first sensing data, and storing the matched object information in a database of one of the first sensor and the second sensor.