The invention relates to a fabricated double-limb shear wall with an inner arch type coupling beam. The fabricated double-limb shear wall is characterized by comprising first shear wall units, secondshear wall units, the inner arch type coupling beam, laminated layers, vertical connecting components and horizontal connecting components, and the first shear wall units and the second shear wall units correspond up and down and are connected through the vertical connecting components; and the double-limb first shear wall units are connected to the inner arch type coupling beam through the horizontal connecting components, gaps are reserved between the first shear wall units and the second shear wall units, and concrete is poured into the gaps to form the laminated layers. According to the fabricated double-limb shear wall, the connecting components between the shear wall units can be prefabricated in a component processing factory, and compared with a traditional cast-in-place building structure construction method, on-site welding and mounting are convenient, operation time is saved, on-site labor force is reduced, and assembling efficiency is improved.