The invention discloses a construction technology for a concrete double-coupling beam with a soft interlayer. The problem that according to a traditional construction technology, pouring construction of the double-coupling beam cannot be finished is solved. Lower coupling beam body concrete is directly poured through a pump pipe, upper coupling beam body concrete is poured with the angle ranging from 30 degrees to 60 degrees along the position, at one second of the height, of the beam length after a soft partition material layer is plugged, soft filling layers are fixed at the two ends, concrete is poured into the beam along the oblique section of the concrete, and the impact force of the concrete is prevented from damaging the soft filling layers. The lower portion of the double-coupling beam is vibrated through a vibration bar, and after the soft filling layers are installed, an upper coupling beam body is vibrated through an external vibrator. Templates are arranged independently, accurate concrete discharging and vibration with the external vibrator are carried out, the thickness of the steel bar protection layer at the interval part of the double-coupling beam and the integrity of the soft filling material layers are guaranteed accordingly, and the design requirement for one-time concrete pouring of the double-coupling beam is met.