The invention provides an MBR double-membrane process sewage treatment integration apparatus. The apparatus comprises a facultative zone, an anaerobic zone, an aerobic zone, an MBR membrane zone, a clear water tank, a nanofiltration membrane zone and a device room, and the device room comprises a blower, a first medicament storage chamber, a second medicament storage chamber and an electric control cabinet. Solid-liquid separation is effectively carried out through an MBR membrane to make the separation effect better than the separation effect of a traditional sedimentation tank, and the turbidity and the suspended matter content of effluent water are close to zero, and the biological deamination effect in the invention is better than a conventional biological deamination effect; the apparatus also includes the nanofiltration membrane zone, so soluble ion salts, parts of organic matters and the chroma in the sewage can be effectively filtered out, thereby the water quality is further improved; and the apparatus also has the advantages of easiness in integration, standard unification, quantified production, high degree of automation, no manual backwashing, less manual operation, reduction of the operating cost, short construction period, low construction cost, and easiness in installation of standard modular devices.