The invention discloses a jet stirring reactor system in the technical field of catalytic chemistry. The jet stirring reactor system comprises a reactor device, wherein the reactor device comprises a main gas inlet pipeline, at least one secondary pipeline and a load component; each secondary pipeline is communicated with the main gas inlet pipeline, and the section of secondary pipeline is of a convergent structure towards the downstream, so that gases form jet at the outlet of the secondary pipeline; and the load component is configured as a supported catalyst, and arranged at the downstream of the formed jet. According to the secondary pipelines and the load component system, long contact time can exist between the reactant gas and the catalyst, so that catalytic reaction can be carried out to the greatest extent.