The　fix　reposition　errors　of　holographic　disc　were　mainly　discussed.　According　to　the　volume　holographic　storage　theory　and　rays　tracing　method,　the　need　of　precision　location　of　holographic　disc　for　spherical　reference　wave　was　discussed,　and　the　fix　reposition　errors　were　analyzed　then　the　errors　compensation　method　was　proposed.　A　fix　device　of　holographic　disc　was　designed,　and　a　method　to　feed　back　and　compensate　the　reference　beam　was　put　forward:　A　glass　plate　that　could　be　controlled　to　adjust　its　obliquity　was　added　at　the　back　of　assembling　lens　of　reference　beam,　which　fix　reposition　errors　could　be　compensated　precisely　and　the　precision　is　1-2　μm.　The　feasibility　was　demonstrated　by　experiments.