Portable meter reading checking instrument

The invention provides a portable meter reading checking instrument, which belongs to the technical field of electric energy meter data checking equipment, and comprises the following steps that: a user logs in an electric power marketing information acquisition system by using an intelligent touch screen, and downloads a client file and an electric energy meter code file under a specified transformer area; the camera device collects an operation state image of the electric energy meter and scans a label on the electric energy meter; and the data processor compares the customer file information and the electric energy meter code file information downloaded through the intelligent touch screen in the specified court with the customer file information and the meter code file information labeled by the label, and sends a comparison result and a meter running state to the intelligent touch screen for display. According to the invention, a marketing and acquisition system can be logged in at a check site, an elect