Abstract: The implementation of science and technology information innovation leading project and promoting the high?quality development of fire protection is an important support to strengthen the construction of digital government. The establishment of the fire accident investigation information platform brings the possibility for the transformation of the fire accident investigation work from the traditional mode to the digital mode and the internet office mode. According to the information platform design principles of open sharing, integration and innovation, reform and transformation, leading and leaping, safe and orderly, this paper puts forward the construction framework design mode of fire accident investigation information platform integrated into digital government. The platform integrates big data, mobile internet, geographic information technology and streaming media technology to realize "internet + fire investigation", and provides one?stop solutions for the dynamic collection and dynamic update of fire site information, talent training and other aspects of the work.

Key words: digital government, fire accident investigation, information platform, architecture design