The invention discloses an assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node which comprises core section steel, U-shaped hidden brackets, circular steel pipe fasteners, core-passing anchor bolts, a node area longitudinal rib, a column tie rib and concrete. The core section steel which is formed through welding a section steel flange and a section steel web plate has a cross-shaped structure. The U-shaped hidden brackets are connected with the section steel flange through the high-strength bolts. The U-shaped hidden brackets are distributed in a crossed manner. The core-passing anchor bolts horizontally pass through the U-shaped hidden brackets and are reversely arranged in a staggered manner. Four sets of circular steel pipe fasteners are distributed among the U-shaped hidden brackets along a circumferential direction. The circular steel pipe fasteners are connected with and fixed to the U-shaped through the high-strength bolts.The column tie rib passes through a process hole on the U-shaped hidden bracket rib plate and is bond with a column longitudinal rib which passes through the node, thereby forming a steel reinforcement cage. According to the assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node, quick splicing of the steel component in the node is realized by means of the high-strength bolts. The assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node has advantages of high bearing force, high integrity, convenient construction, high industrialization degree, etc.