The present invention provides a method for scanning information to be scanned in a computer device, the information to be scanned needing multiple scans, and the method comprising the steps of: a. determining a delay duration from the end of a scan for the information to be scanned to the start of a next scan according to current performance information about the CPU of the computer device; and b. scanning the information to be scanned according to the delay duration. According to the solution of the present invention, by determining a delay duration from the end of a scan for the information to be scanned to the start of a next scan according to current performance information about the CPU of a computer device, and scanning according to the delay duration, problems such as slow running due to high occupancy ratio of CPU resources during scanning can be avoided.