目的:研究分析电子物证检验经常使用的数据恢复工具。方法在数据破坏以后使用工具恢复数据。结果:四种数据恢复工具需要针对不同情况适用,才能发挥最好效果。结论:通过实验可以发现,这些数据恢复工具各有优缺点,在电子物证检验中可以针对不同情况适用,还可以综合使用,提高数据恢复率。 Aims: To study and analyze data recovery tools often used in electronic evidence verification. Method to recover the data using tools after data corruption. Results: The four data recovery tools need to be adapted to different situations to get the best results. Conclusion: It can be found through experiments that each of these data recovery tools has its own advantages and disadvantages. It can be applied to different situations in the test of electronic material evidence, and can be used in combination to improve the data recovery rate.