The invention provides a fly ash stabilized granulating integrated system of a waste incineration power plant. The fly ash stabilized granulating integrated system comprises a cement bin, a fly ash bin, a chelating agent solution preparing system, a fly ash stirring and mixing system, a cyclic granulating system and a finished product bin. The fly ash stabilized granulating integrated system has the advantages that fly ash stabilized granulating and clean storage effects can be realized by the aid of 'fly ash+cement+chelating agent+water+stirring and mixing+cyclic granulating' fly ash treatment processes; the problem of dirty, disorder and poor fly ash treatment environments of existing waste incineration power plants can be solved, and workshops are truly dustless; the problem of secondary pollution due to flying dust in fly ash stabilized treatment and transport procedures can be solved by means of granulating and shaping stabilized fly ash, granulated fly ash is extremely high in hardness, and accordingly the problem of blockage of drain pipe networks of landfill sites due to rain wash and the like on fly ash in bulk can be solved.