A domain data input operation system for constructing a CIM based SCADA system has the technological characteristics in providing a technology, including: a user terminal part for instructing to generate a CIM XML file through a terminal; a DB editing server part for generating the CIM XML file by converting power system data into a CIM XML type according to a CIM XML file generation command transmitted from the user terminal; and a DB server part which constructs a proprietary power system data, by importing the CIM XML file generated in the DB editing server part. The present invention can reduce input costs and required input time of the power system data.
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