A vortex flow meter having a vortex generator comprises a plurality of vortex generating elements installed in a fluid passage against the fluid's flow and perpendicular thereto. An upstream-side vortex generating element and a downstream-side vortex generating element both arranged in parallel at a predetermined interval therebetween in the direction of the fluid's flow. Zero to plural flat plates are arranged in parallel at equal intervals between both vortex generating elements. The representative length portions of the vortex generating elements are located respectively on the surfaces opposed to each other. The frequency ratio of the vortexes generated, when independently arranged, are 0. 7 to 0. 9 on the standard basis of the upstream-side vortex generating element.
