Thermal insulation wall gutter node and construction method

The invention relates to the technical field of constructional engineering, and discloses a thermal insulation wall gutter node and a construction method.The thermal insulation wall gutter node comprises a groove seam formed by extending from the side face of a wall to the interior of the wall; the section groove body of the groove seam is inclined downwards from the interior of the wall body to the side face of the wall body, and the inclination angle is theta 1; the cover plate comprises a main plate, a first side plate and a second side plate; a section plate body of the flange is obliquely arranged, and the inclination angle is theta 2; theta1 is equal to theta2, and the flanges are inserted and matched in the slots; the first side plate is fixed to the wall, and the second side plate is fixed to the heat preservation layer, so that the cover plate covers and protects the top of the heat preservation layer. According to the thermal insulation wall gutter joint and the construction method, the groove seam