The invention discloses a stress annealing method and device capable of accurately controlling annealing process parameters. During annealing, an amorphous 
alloy material is made to automatically pass through an annealing cavity at a 
constant speed, and the tensile stress, the annealing temperature and the conveying speed are automatically and accurately regulated and controlled online. The annealing cavity is small in size, 
stress control is flexible and accurate, 
temperature control is flexible, rapid and convenient, and the energy-saving 
advantage is achieved. In the prior art, a box type annealing cavity is adopted, the box type annealing cavity is large in size, an annealing position is away from a heat source, heat 
conductivity is poor, thick and large heat insulating walls are adopted by the cavity, and 
heat capacity is large, so that 
temperature control is slow and difficult, and 
energy consumption is large in the annealing process. The channel type annealing cavity is adopted, the cavity is small in size, the cavity walls are made of a high-heat-
conductivity material, heat conduction is rapid, 
temperature control is flexible and rapid, and 
energy consumption is small. The dynamic annealing mode that an annealed material is conveyed to pass through the channel type annealing cavity at a 
constant speed is adopted, and compared with static annealing mode through box type annealing cavities commonly used at present, the advantages of accurate control over the annealing parameters and high uniformity of the batch material annealing effect are achieved.