Provided is a ladder type stimulated Brillouin scattering container. The height of the cross section of the container has ladder-like changes, the height is gradually reduced from the incidence end of light to the emergence end of light, and the number of ladders is at least two. When it is required that the included angle between two light beams incident to the stimulated Brillouin scattering container is delta, the intersection points of the incident plane of the two light beams on the container and the surface of the container is a and b respectively, the length between a and b is L1, the sum L2 of the length of the first segment of the container and the length of the second segment of the container should meet the formula shown in the specification, the height of the first segment is the maximum, the height of the second segment is smaller than that of the first segment, the height of the third segment is the minimum, H is the height or diameter of the second segment with the smaller height, and h is the height or diameter of the third segment with the smallest height. The container structure can generate enhanced stimulated Brillouin scattering signals.