Data　retrieval　are　an　important　information　processing　task.　In　optical　information　processing,　the　usual　method　is　spatial　filtering　based　on　Fourier　optics.　However,　these　methods　are　very　difficult　to　implement　in　practical　applications.　In　recent　years,　random　lasers　due　to　its　cavity　free　property　have　attracted　widespread　attention,　but　few　applications　have　been　reported.　Here,　we　develop　an　information　retrieval　method　based　on　random　lasers,　where　the　spatial　frequency　spectrum　of　a　contaminated　Fourier　transform　hologram　can　be　obtained　by　detecting　the　temporal　frequency　spectrum　information　from　random　lasing.　The　hologram　information　can　be　reconstructed　from　an　inverse　Fourier　transform　of　the　spatial　frequency　spectrum　obtained　after　data　processing.　This　method　may　potentially　find　applications　in　information　optics　and　optical　data　storage.　(C)　2015　AIP　Publishing　LLC.