The invention discloses a recovery method of wet-process phosphoric acid phosphogypsum yard eluvial water; the eluvial water of the phosphogypsum yard is conveyed into a circulating water system of a wet-process phosphoric acid device; part of hot recycle washing water which is discharged by a section of tail gas washing tower of a reactive tail gas washing system of the phosphoric acid device is conveyed to a filter cloth washing trough so as to replace a steam condensate which is conveyed by a concentration section of phosphoric acid; circulating water or the eluvial water is used as grinding water directly. The invention supplements the eluvial water into the circulating water system for producing the phosphoric acid so as to replace the steam condensate which is used for washing the filter cloth and fresh process water which is used for grinding, thus leading the eluvial water to be used completely without discharging outside and saving a large amount of fresh process water and energy; furthermore, P2O5 in the eluvial water can be recovered and used, thus reducing the production cost of the whole process.