Abstract: A device for opening and closing a push open type fuel door for a vehicle may include a latch assembly, a push button assembly and a motor assembly modularized and mounted in a single housing. The latch assembly may come into direct contact with a fuel door so as to lock or unlock the fuel door. The push button assembly may be connected with the latch assembly so as to be operated in conjunction with the latch assembly, and unlock or lock the latch assembly while being moved upward or downward by pushing the fuel door. The motor assembly may lock a push button of the push button assembly so as to restrict movement of the push button and the latch assembly when the fuel door is closed.