The invention relates to a base full-thickness construction formwork. The base full-thickness construction formwork comprises two or more angle steels which are arranged in parallel, vertical fixing devices, an anti-rollover fixing device and an anti-lateral-sway fixing device, wherein the vertical fixing devices, the anti-rollover fixing device and the anti-lateral-sway fixing device are arranged on the angle steels. The base full-thickness construction formwork is adjustable in height, simple in fixing method, suitable for mass production, high in generality, low in use cost, high in strength, free from deformation, reliable in performance and quick to disassemble and assemble. A large number of new ordinary road and high-grade road engineering projects are performed each year, at the same time, the scale of urban construction is also very large, the engineering quantity of supporting municipal facilities is also very large, and the market demand of base full-thickness construction supporting formwork is very large, so that the base full-thickness construction formwork has a wide range of applications.