Abstract: To the examination attached figures of large-scale pressure equipments, such as spherical tank, gas holder and so on, the graphs and data needed to be labeled are huge. Because of the limit of PC’s speed and memory, charting software, such as CAD or Visio, was unavailable. Aiming at this problem, a kind of special equipment charting software was self-designed based on Visual Basic Application(VBA). The consumed PC memory, after labeling huge amount of graph and data by using this software, was less than CAD’s 10%. The character of the software to several examination project was introduced, and some flow and source code was given.