The invention discloses a fast fixation method for railways. Fixation of railway sleepers and steel rails is achieved through two fast fixation devices for the railways. Each fast fixation device forthe railways is composed of a first nut assembly, a second nut assembly, a clamping wrench and a steel rail pressing plate, wherein each first nut assembly and the corresponding second nut assembly form an openable nut in which a threaded hole is formed. The method includes the following steps of inserting spikes on the railway sleepers into through holes in the steel rail pressing plates and making one end of each steel rail pressing plate fixed to the upper surface of the bottom of the corresponding steel rail; toggling the clamping wrenches and opening each first nut assembly and each second nut assembly with a first rotating shaft as an axial center; sleeving the spikes with the first nut assembles and the second nut assemblies, and rotating the openable nuts to make the threaded holesof the openable nuts matched with outer threads of the spikes; rotating the clamping wrenches and locking the first nut assemblies and the second nut assemblies to complete fast fixation of the railway sleepers and steel rails. The technical problems that traditional fixation modes for the steel rails and the railway sleepers are low in operation efficiency, waste operation time and have a strongimpact on the operation progress can be solved.