The invention relates to a method for modulating interval blanking scan time series of fake frames of a flat panel display; the method comprises the steps: each period TCLK outputted by a timer is taken as a scan time slice for repetitively scanning the display and displaying the grey levels of the display; when the frame period of the scan is TS and the number of lines in a basic driving latticeis L, the line scan period is TS/L; and when n time slices are scanned during the line scan period TS/L, n-1 blanking time intervals (Ttimesliceblanking) of time slices are inserted. As the n-1 blanking time intervals (Ttimesliceblanking) are inserted among scan time slices T'CLK, the method improves the flash frequency of the display and the dynamic stability of images. In particular, when the total blanking time of n-1 time slices does not exceed the scan time T'CLK after the blanking distribution, the maximum flash frequency of the display can be increased by (n-1) times without substantially reducing brightness or increasing scan speed.