An audio signal processing method, includes: acquiring 5.1-channel audio signals; acquiring head related transfer function (HRTF) data corresponding to each virtual speaker box in 5.1-channel virtual speaker boxes based on coordinates of the 5.1-channel virtual speaker boxes in a virtual environment; obtaining processed 5.1-channel audio signals by processing corresponding channel audio signals in the 5.1-channel audio signals based on the HRTF data corresponding to each virtual speaker box; and synthesizing the processed 5.1-channel audio signals into a stereo audio signal.