According to an aspect of the present invention, a data recording method in a holography optical memory system, for recording a two-dimensional pixel data page in a recording medium can be provided. In accordance with an embodiment of the present invention, the data recording method in a holography optical memory system can include recording sequentially the signal beams carrying one-dimensional pixel data lines, included in the original two dimensional pixel data page, in the recording medium by using the same reference beam. Here, the pixel data page can be recorded such that any two adjacent pixel data lines are partially overlapped with each other in an area of the recording medium.