The　high　water　content　in　lignite　(35-40%)　induces　a　great　amount　of　heat　loss　for　water　evaporation　in　coal　combustion　and　reduces　the　boiler　efficiency　significantly.　Installation　a　water　condensation　device　in　the　outlet　of　desulfurization　absorption　tower　can　recover　a　great　amount　of　water　and　latent　heat　from　the　flue　gas　containing　saturated　steam.　In　the　present　study,　a　pilot　test　platform　was　built　in　a　600MW　lignite-fired　power　plant,　and　50,000m3/h　flue　gas　has　been　extracted　to　be　cooled　during　the　test　and　the　flue　gas　temperature　can　be　reduced　by　10?.　The　result　shows　that　187.7GJ/h　of　latent　heat　can　be　recovered　and　73.9t/h　condensate　water　can　be　collected　from　the　entire　flue　gas　(2,500,000Nm3/h)　for　such　a　600MW　power　plant　burning　lignite.　The　wet　flue　gas　desulphurization　system　(WFGD)　consumes　the　supplemental　water　of　60-80　t/h　in　this　unit,　consequently,　the　water　recovery　quantity　of　73.0t/h　means　that　the　zero　water　consumption　in　WFGD　can　be　achieved　by　supplementing　the　recovered　water　back　into　WFGD.