In order to meet the needs of the fault management information system and to improve the inconsistent status among the information items and semantic content for the intelligent electronic devices（IEDs）， with the IEC 61850 information model as the management object， a verification and control method for the consistency of the IED information models is proposed by using the information semantic theory and object-oriented theory. The method proposed can change the management of the semantic dictionary from the static state to object-oriented dynamic management， thus achieving consistency of the information semantic content for the secondary system and control over its development process.