The invention discloses a manufacturing method of a porous volcanic aggregate concrete sleeper, and belongs to the technical field of sleeper production. The manufacturing method comprises the steps of concrete raw material preparation, porous volcanic aggregate pre-treatment preparation, porous volcanic aggregate concrete preparation, pre-stressed wire frame binding, steel mould placement and tensioning, porous volcanic aggregate concrete pouring and vibration compaction forming, adoption of automatic temperature-controlled steam curing, releasing and demoulding. According to the manufacturing method of the porous volcanic aggregate concrete sleeper, disclosed by the invention, by reasonably blending the proportion of porous volcanic aggregate concrete and regulating technological parameters in a construction process, the porous volcanic aggregate concrete sleeper which can be used for the tropical zone, is light in mass and high in strength is prepared.