The invention discloses a decorative fair-faced concrete construction method. The method comprises the steps of S1, engraving by adopting the combination of intaglio engraving and hollow engraving; S2, assembling a frame mold; S3, assembling a formwork and the frame mold; S4, forming holes on the formwork; S5, spreading salad oil after the surface of the formwork is wiped clean; S6, snapping a wall position line, installing a door and window opening formwork and correcting; S7, installing an inner side wall body formwork and an outer side wall body formwork; S8, correcting and reinforcing theformworks installed in step S7; S9, pouring cement between the inner side wall body formwork and the outer side wall body formwork which are reinforced in S8; S10, removing the formworks to acquire decorative fair-faced concrete. According to the construction method, the salad oil is spread as a demoulding agent, the salad oil is transparent and pollution-free and has good protective effect on theconcrete and protective waterproof effect on the formworks, and by adopting the combination of the intaglio engraving and the hollow engraving, the forming effect is good, formed patterns are plump and have three-dimensional senses, and membrane papers of other formworks are not damaged.