The present invention belongs to the field of landscape water purifying environment engineering and ecological engineering technology, and is especially one landscape water purifying technological system and its operation process. The landscape water purifying technological system consists of biofilters and artificial ecological shoreside wetland bands. The biofilters can eliminate organic pollutant, ammonia nitrogen, suspended solid, etc from sewage and needs no aerator. The artificial ecological shoreside wetland bands can eliminate suspended solids the rain water run-off carries and has plant growing to eliminate partial nutritious matter from water. The biofilters run to make water flow to form internal circulation, and the rain water can replenish water. The present invention has the features of obvious water purifying effect, low running cost, environment friendship, water saving, etc.