The invention relates to the technical field of isolation plates, in particular to a construction isolation plate for relieving impact inclination. The construction isolation plate comprises an isolation plate, wherein a base is fixedly connected to the bottom end of the isolation plate, a water collecting tank is fixedly installed on the left upper side of the isolation plate, a groove is formed in the left side of the isolation plate, sliding grooves are formed in the upper side wall and the lower side wall of the groove, a buffer plate is arranged in the groove, a plurality of buffer parts are evenly and fixedly installed on the side, which is close to the inner wall of the groove, of the buffer plate, the other ends of the buffer parts are fixedly installed on the inner wall of the groove, sliding blocks are fixedly connected to both ends of the buffer plate, an installation plate is fixedly installed on the bottom end of the base, and a net bag is transversely and fixedly installed on the left upper side of the base. According to the construction isolation plate for relieving impact inclination, objects which fall from a high place are prevented from hitting passersby during construction, the safety guarantee is improved, recycling can be achieved, materials are saved, the utilization rate of the isolation plate is increased, the isolation plate is suitable for different working conditions, and financial expenditure can be reduced.