The invention relates to an on-site defect-eliminating method, in particular to on-site defect-eliminating method for acquisition terminal and 
master station no-communication failures. At present, operation and maintenance teams in various cities have different and independent on-site defect-eliminating methods, the acquisition operation and maintenance efficiency is low, and the on-site operationand maintenance 
workload is great. The on-site defect-eliminating method comprises the steps of: checking information; performing various relevant inspection on equipment according to an optimizationsequence; performing corresponding defect 
elimination according to the found failures; verifying a defect-eliminating result; confirming the failure manually; and recording feedback results in the 
processing process. The on-site defect-eliminating method combines the 
system flow of the current acquisition operation and maintenance defect-eliminating process, performs on-site defect 
elimination byadopting the systematic professional defect-eliminating method which is convenient in use, optimized and efficient according to various 
failure causes of no-communication between the acquisition terminal and the 
master station, achieves the effects of improving the acquisition operation and maintenance efficiency, reducing on-site operation and maintenance 
workload and enhancing professionalization of the acquisition operation and maintenance teams, further guarantees the meter-reading rate of an 
electricity utilization 
information acquisition system, and supports the work development of state grid marketing.