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The accuracy is one of the core system indicators of radar, and it is of great significance to accurately evaluate it in engineering; when using ADS-B data for accuracy evaluation in practical applications, by lack of time information and uneven time sampling beats, the error of track matching increases, and causes the decreases of accuracy evaluation or even failures. In view of the above problems, the problem of accuracy evaluation under the condition of lack of time information is studied, and the radar track matching technology based on the dynamic time warping algorithm is adopted, which can still achieve satisfactory evaluation result of radar accuracy with no time information; considering the boundary and computational resource constraints in practical applications, a pre-screened and lower bound acceleration technology is proposed; then based on the high-dimensional sequence information in practical applications, the joint measurement method further improves the accuracy of track points matching; finally, the proposed method is verified on the actual measurement data; the experimental test shows that this method can accurately evaluate the radar accuracy even when the time information is missing, the calculation speed is fast; the proposed algorithm expands the application range of ADS-B based radar accuracy evaluation and has a wide range of practical value.