The C40 super fine sand concrete is produced by using Handan local material and the influ-ence of water-binder ratio, fly ash replacement rate, and sand ratio on the 28 d compressive strengthand workability are studied in orthogonal experiment design.The results show that fly ash replacementis the most primary factor effecting on 28 d compressive strength and sand ratio is the most primaryfactor effecting on workability.Appropriate fly ash replacement can improve the 28 d compressivestrength.With the increase of sand ratio, slumps decrease sharply and strength decreases slightly.Itcalls for using the 0.45 as water-binder ratio, 10% as fly ash replacement and 30% as sand ratio tomake reasonable design of mix proportions, we can obtain the super fine concrete strength that its 28d compressive strength reaches to 59.1 MPa, for 60mm of slump.