The invention discloses a frame rate test method and system based on virtual reality software. The method comprises the steps that according to a preset number of times of data collection, frames in a corresponding number are acquired; the frames are updated in sequence according to a preset graphic rendering rate; frame rates of all the frames are obtained through calculation according to an update time interval between the adjacent frames; a mean value of the frame rates is obtained through calculation according to the frame rates and the number of times of data collection; and the mean value of the frame rates is compared with a standard mean value of the frame rates. Through the method, the frame rates can be obtained through calculation, and whether the virtual reality software conforms to standard specifications can be known by comparing the frame rates with the standard mean value.