The utility model mainly discloses a prefabricated, assembled and integral type shear wall and a connecting node thereof. The prefabricated, assembled and integral type shear wall comprises a prefabricated shear wall board, prefabricated steel bars and prefabricated section steel. The prefabricated section steel comprises channel steel which is arranged at the upper end and the lower end of the inner edges of the two sides of the prefabricated shear wall board and H-shaped steel which is arranged at the upper end and the lower end of the middle part of the wall board. End plates are respectively fixed at the upper ends of the section steel at the upper part of the prefabricated shear wall board. The lower ends of the section steel at the lower part of the prefabricated shear wall board stretch out of the lower end surface of the prefabricated shear wall board. Moreover, the prefabricated steel bars stretch out of the lower end surface of the prefabricated shear wall board. When upper and lower ends of two identical shear walls are abutted, the section steel on the lower end surface of the previous shear wall is welded with the surfaces of the end plates of the section steel at the upper part of the next shear wall, and the shear walls are fixedly connected through cast-in-situ concrete in a gap between the shear walls. The prefabricated, assembled and integral type shear wall and the connecting node thereof have the advantages that the connecting accuracy is improved, the effects of non-wet operation, construction period reduction and environmental friendliness are realized during construction, the overall seismic capacity is strong and the overall cost is low.