The invention relates to a mould for rails, in particular to a mould for stone-like or wood-like concrete rails suitable for decoration engineering of water conservancy watercourses, municipal bridges, landscape boardwalks, reservoir enclosures, houses, courtyards, flower beds and the like and a manufacturing method of the mould. The mould comprises a mould core and an external mould framework, wherein the mould core comprises a front mould and a rear mould which are provided with pouring holes; the front mould at least comprises two pillar front moulds and a breast board front mould; the breast board front mould is arranged between the two pillar front moulds; in a similar way, the rear mould at least comprises two pillar rear moulds and a breast board rear mould; the breast board rear mould is arranged between the two pillar rear moulds; after the front mould and the rear mould are assembled, the breast board mould cavities are communicated with the pillar mould cavities; the front mould and the rear mould are connected by stationary fixture through sealing; and the external mould framework is fixed on the external surface of the mould core by adhesion materials and / or bolts. The mould and the manufacturing method have the following advantages: simple production steps, energy saving, environmental protection, low cost, simple and reasonable structure, convenience in use, perfect and vivid effect, high strength, water resistance, weather resistance and the like.