The invention provides a brewing method of olive fruit fermented wine. The brewing method includes the steps of 1), pretreatment of olive fruit; 2), enzyme deactivation; 3), bitterless treatment; 4), primary fermentation; 5), secondary fermentation; 6), ageing; 7), canned sterilization. An existing olive wine brewing technology is substantially improved, alcoholic strength of the brewed olive wine is 10%Vol-12%Vol, total sugar content is 2-18g / L, total acid is 0.30-0.60g / L and volatile acid is 0.05-0.1g / L; the fermented wine has the advantages of low content of bacteria, good quality, natural color, lime green, clarification, coexistence of bouquet and fruity and sweet and mellow taste; in addition, the olive fruit fermented wine is rich in organic acid, amino acid, vitamins and minerals and has functions of clearing away heat and toxic materials, eliminating phlegm and regulating qi, moistening lung and nourishing yin and the like, and as is detected, the content of hydroxytyrosol in the olive fruit fermented wine can reach 380mg / mL.