The present invention discloses a method for carrying out expansion modeling and alarming on a feeder automation function on basis of IEC61968 CIM. According to the method, based on the IEC61968 CIM standard, according to the practical situation that after a fault is generated, a plurality of staged operations are sequentially carried out in the feeder automation to implement fault isolation and fault recovery, the feeder automation function is subjected to expansion modeling according to the actual stage and interoperation of a model and data and an alarming function are implemented according to an expansion modeling result. By carrying out expansion modeling on the feeder automation function, on one hand, the method is convenient for information interaction and model interoperation and informatization and automation levels of a power distribution automatic system are improved; and on the other hand, information included by the feeder automation function is expanded and the method is convenient to carry out lean management on the feeder automation function and improve practicality of the alarming function.