The invention discloses a wireless fire-information acquisition device. The wireless fire-information acquisition device comprises a single chip microcomputer, a smoke sensor, a temperature sensor, a wireless communication module, a power supply and a GPS (Global Positioning System) module, wherein the smoke sensor, the temperature sensor and the GPS module are respectively connected with the single chip microcomputer which is also connected with the wireless communication module; the power supply supplies power to the single chip microcomputer. The wireless fire-information acquisition device disclosed by the invention has the advantages that the smoke sensor and the temperature sensor are respectively arranged at fire monitoring sites to acquire data of all the monitoring sites in real time, the data is transmitted to the single chip microcomputer, the single chip microcomputer sends the data by the wireless communication module in a wireless manner, and since the data is transmitted by utilizing a wireless network, so that the region limit is reduced and the monitoring range is wider.