The invention discloses a system for remotely inquiring and reserving parking spaces of parking lots. The system consists of parking space sensors, concentrators, parking lot managing computers, a central processing computer, wired/wireless mobile communication networks, a parking space information receiving/transmitting device, a global positioning system (GPS) satellite navigation positioner, a city electronic traffic map, information processing management software, a parking-lot parking space database, a mobile phone payment system and a mobile phone short message platform. By the system, the parking lots nearby a destination and idle parking spaces in the parking lots can be inquired by vehicle owners in advance, vehicles can be driven to satisfying parking lots under the guiding action of a GPS navigation system, and satisfying idle parking spaces can be quickly and conveniently selected for parking the vehicles under the guiding action of a parking space distribution map, so that the phenomena of universally searching the parking lots aimlessly and universally searching the parking spaces in the parking lots aimlessly are prevented, and a large amount of time is saved and great convenience is provided for the vehicle owners. The vehicle owners can reserve the parking spaces in advance or eliminate the reservation.