The invention discloses an intelligent diagnosis system and method for abnormal information in an electric information acquiring system. The system comprises an anomaly analysis expert database, a self-learning module and a GIS fault location module which cooperate with one another to enhance a capability of monitoring the operation of the electric information acquiring system. The system and method use the data acquired by the electric information acquiring system as a basis, count, analyze and diagnose t various kinds of electric data acquired by the abnormally analysis expert database and the self-learning module, determines an abnormity type and a serious degree, lock the specific location of a fault by the GIS fault location module quickly and accurately, and improve fault monitoring accuracy and fault processing efficiency to a great extent.