The invention relates to an instruction processing method and an instruction processing device based on a time axis. The method comprises the following steps: receiving a video navigation operation input by a video playing interface specific to intermittent video; determining a time axis automatic operation instruction corresponding to the video navigation operation; automatically operating the time axis in the video playing interface according to the time axis automatic operation instruction, so as to automatically operate each video clip in the intermittent video. According to the technical scheme, when the video navigation operation is received, the corresponding time axis automatic operation instruction of the video navigation operation can be determined, further the time axis in the video playing interface is automatically operated according to the time axis automatic operation instruction, so as to realize automatic completion of an operation on the time axis by inputting the video navigation operation on the basis of reducing user operations, and further each video clip in the intermittent video is automatically operated, so that operation efficiency on the time axis and the operation efficiency on the intermittent video are improved.