The content of fire cause investigation is not only the fire prevention as reference but also the significant gist to improve firefighting. But in point of fire site investigation, mostly were using handwriting document for recording information at present, obviously lacking with carrying convenience and recording instantaneity. Meanwhile, after causing of fire, the investigation work also utilize building information captions to display the original fire scene and identify the ignition point. But traditional two dimensions floor plan is limited to provide architectural spaces information, usually cant represent the actual appearance of the building. If using three dimensions Building Information Modeling (BIM) outputting the relevant elevations, perspectives information and so on to assist the reviewer mind produced visualize and spatialize information. The smart handheld device becoming more and more popular in recent years, it has matured software and hardware communications technology. By using the hardware of smart handheld device to support the need of investigating items in fire investigation into electronic check and form filling. This research uses two-tier system architecture, respectively for the client and server. The server side uses both WAMP as the operating system, and MySQL as the database engine. The client side is used with PHP technology. Based on the studying illustration result, this system not only provides the data storage of inspection results, but also can be used for the relevant units in the future review.