Node connecting structure between FRP pultruded profiles and construction assembling method

The invention discloses a node connecting structure between FRP pultruded profiles and a construction assembly method. The node connecting structure is suitable for connection of beam-beam splicing nodes or/and connection of beam-column splicing nodes. The joint connecting structure between the FRP pultrusion profiles comprises an FRP pipe, the FRP pultrusion profiles, a sealing plate and a concrete piece, the multiple FRP pultrusion profiles are in beam-beam connection or/and beam-column connection, and connecting joint areas between the multiple FRP pultrusion profiles are located in the FRP pipe; the two sealing plates seal the two ends of the FRP pipe in a one-to-one correspondence mode, so that the sealing plates and the FRP pipe jointly define a concrete filling space, one of the two sealing plates is provided with a pouring hole, and the other of the two sealing plates is provided with a vent hole; and the concrete piece is formed by solidifying concrete grout poured into the concrete filling space fro