The invention relates to an on-site defect-eliminating method, in particular to an on-site defect-eliminating method for a totally data-less failure of an electric meter under a type-II concentrator.At present, some failures must be handled on site, the on-site processing efficiency is low, and erroneous judgment, missed judgment and repeated judgment are prone to occur. The on-site defect-eliminating method comprises the steps of: 1) a preparation step; 2) and a defect-eliminating step, which is implemented by information checking, general checking, terminal parameter investigation, local communication investigation, electric energy meter data through meter reading, manual confirmation of failure and feedback system. The on-site defect-eliminating method performs processing in sequence according to settings, effectively accelerates the processing speed, avoids erroneous judgment, missed judgment and repeated judgment, and eliminates the problem of lack of meter reading data for daysunder the type-II concentrator quickly and precisely through the standardized on-site failure defect-eliminating process.