In　this　paper,　the　quality　of　the　reconstructed　images　by　general　plane,　Gaussian,　speckle　imaging,　and　speckle　reference　beams,　is　investigated　by　numerical　simulation　and　preliminary　experiments,　and　is　quantitatively　evaluated　using　the　signal　to　noise　ratio　(SNR)　and　the　loss　of　signal　to　noise　ratio　(LSNR)　for　the　purpose　of　comparing　experimental　results.　The　results　of　numerical　simulation　show　that　with　plane　reference,　the　quality　of　reconstructed　images　are　very　good　and　with　Gaussian　beam　the　noise　of　the　reconstructed　images　is　restrained　but　the　boundary　information　is　also　weakened.　What　is　worthy　to　be　noticed,　the　results　of　both　numerical　simulation　and　preliminary　experiments　show　that　with　speckle　reference,　the　quality　of　the　images　is　not　good;　although　with　the　speckle　imaging　reference　that　is　the　image　of　the　random　phase,　the　situation　is　a　little　better.　So,　it　is　necessary　to　improve　the　quality　of　the　reconstructed　images　when　the　random-phase　multiplexing　technology　is　to　be　used　for　high　density　storage.　And　in　order　to　implement　high-density　holographic　storage　with　high　reconstruct　quality,　the　reference　beam　must　be　optimized.