The invention provides a universal horizontal elastic combined support. The universal horizontal elastic combined support comprises at least one two-way sliding support and at least one universal elastic support which are connected between an upper structure and a lower structure and arranged side by side. The universal horizontal elastic support is composed of an upper support plate connected with the upper structure, a lower support plate connected with the lower structure, and horizontal elastic devices arranged between the upper support plate and the lower support plate. A set of inwards-concave contact holes formed regularly are formed in the surface of the lower side of the upper support plate. The horizontal elastic devices are a set of vertical cantilever steel bars corresponding to the inwards-concave contact holes one to one. The universal horizontal elastic combined support is simple in structure and definite in force transmission, the problem that an existing two-way spring support can be probably clamped is completely solved, and the universal horizontal elastic combined support can be widely applied to two-way spring support connection on a building and is especially suitable for hinge connection of roof structures and lower bearing structures in large-span structures.