The invention discloses a prefabricated foundation
assembly which comprises at least two bases and a connecting
transverse beam, wherein the at least two bases are arranged on the ground; the connecting
transverse beam is used for connecting the adjacent bases; a steel structure module is fixedly arranged above each base; embedded screw studs are arranged at the upper top surface of each base; a connecting end plate is fixedly arranged at the bottom end part of each steel structure module; and connecting holes matched with the embedded screw studs are formed in the connecting end plate. Meanwhile, the invention also discloses a splicing method of the prefabricated foundation
assembly. The bases and the connecting
transverse beam are manufactured in advance in a
prefabrication factory; during installation, all the bases are connected through the connecting transverse beam; and then, the steel structure module is arranged on each base. The pouring in a construction site is not needed; the fast splicing can be realized in the construction site; the construction period is shortened; and the work efficiency is improved.