Abstract: In terms of the wholesale molecular orbital calculation probed by our laboratory and the handbook of Hückel molecular orbital parameters obtained by this calculation, the molecular graphs of fused polycyclic aromatic hydrocarbons including all PAH below seven ringe and part of eight rims is drawn an 1 compiled into a collection, In this collection, the structure figures of PAH is characterized by the free valencies and Coulson bond orders of the molecular graphs. In addition, the usage of the. characteristic number system as a nomenclatural notation system is discussed, and the point groups, IUPAC names as well as the characteris-tic graphs for every PAH are annotated in this collection.