Phase　correlation　technique　combined　of　bubble　tracking　algorithm　is　investigated　to　estimate　the　flotation　surface　bubble　displacement　movement　in　this　work.　Image　segmentation　is　used　to　extract　the　high　gray　value　area　of　each　bubble　after　the　two　continuous　images　in　a　sequence　are　preprocessed　by　zooming　out　on　minimum.　Because　of　the　bubble　motion　varying　at　different　parts　of　the　cell　surface,　block　phase　correlation　is　employed　to　obtain　the　detailed　displacement　feature　for　each　block.　A　lead　zinc　flotation　plant　is　used　to　carry　out　experiments　for　the　estimation　of　the　bubble　displacement　motion.　Experimental　results　show　that　the　bubble　displacement　motion　of　each　flotation　cell　is　in　a　certain　cycle.　The　displacement　motion　curve　distribution　and　the　turbulence　degree　curve　distribution　of　the　same　level　flotation　cell　are　the　similar.