In　order　to　control　the　cyanobacterial　blooms　in　eutrophic　water,　an　Ag/AgCl@ZIF-8　floating　coating　was　prepared　by　a　dip-coating　method　with　a　sponge,　innovatively　employed　as　a　carrier　for　the　removal　of　algae　in　natural　water　samples.　The　as-prepared　photocatalyst　was　characterized　by　X-ray　diffraction　(XRD)　and　field　emission　scanning　electron　microscopy　(SEM).　The　effects　of　this　Ag/AgCl@ZIF-8　coating　on　algal　removal　and　phytoplankton　community　structure　in　natural　water　samples　with　cyanobacterial　blooms　were　investigated　under　sunlight.　Results　showed　that　Ag/AgCl@ZIF-8　distributed　uniformly　on　the　surface　of　the　coating　with　good　stability　and　algae　removal　efficiency　in　water　bodies.　After　6　h　of　exposure　under　sunlight,　the　chlorophyll　a　in　the　natural　water　samples　was　degraded　by　99.9%,　the　densities　of　Microcystis　aeruginosa　were　reduced　by　92.6%　and　the　densities　and　biomass　of　the　other　algae　decreased　by　about　80%.　Meanwhile,　the　content　of　colored　dissolved　organic　matter　(CDOM)　in　the　samples　was　decreased,　effectively　controlling　the　cyanobacterial　blooms.　It　was　found　that　O-2(center　dot-)　played　the　main　role　in　the　photocatalytic　inactivation.　In　conclusion,　the　Ag/AgCl@ZIF-8　coating　has　a　promising　application　potential　for　the　removal　of　harmful　cyanobacteria,　and　provides　a　new　idea　for　the　control　of　cyanobacterial　blooms　in　water　bodies.