In view of the complex test environment and characteristics of measurement datathrough a deep analysis of the causes of abnormal dataa method for eliminating abnormal data based on two-sided test of measurement result data by use of polynomial fitting was presented.When the test result met the repairing conditionweighted repairing was conducted for the eliminated data.Real data test showed that this method can effectively overcome the influence of data mutation and paragraph stephas better model stability and higher abnormal data eliminating ratewhich can meet the actual requirement of experimental task and is of high practical value in engineering.