Objective To reduce nurse time on collecting patient monitor data, to improve work efficiency, to ensure the accuracy of monitor data collection, and to standardize the use of patient monitors.Methods A ′monitor of monitors′ system was developed and applied in collecting data from patient monitors.Data collection time, time difference between monitor display and the standard Beijing time, accuracy of the system, and nurses′ satisfaction with the system were compared before and after system application.Results The data collection time and time difference were significantly shortened after system application (both P＜0.05).The accuracy of the system was 100% and nurses′ satisfaction with the system scored (4.68±0.54) points.Conclusion The application of the patient data collection system can shorten data collection time, enhance nurses′ work efficiency, ensure the accuracy of data collection, and standardize nurses′ use of patient monitors.Nurses are satisfied with the system.