A method for manufacturing a low-frequency coupling sound-absorbing structure, comprising: setting parameters of the low-frequency coupling sound-absorbing structure; and providing the low-frequency coupling sound-absorbing structure based on said parameters; wherein the low-frequency coupling sound-absorbing structure comprises: a peripheral chamber , a resonance chamber arranged inside the peripheral chamber , and an extension tube structure arranged inside the resonance chamber , wherein one end of the extension tube structure is connected to a chamber wall of the resonance chamber through a corresponding through hole; and wherein the peripheral chamber comprises a micro-perforated plate , a back plate , a first side plate , and a second side plate , wherein the micro-perforated plate is provided with a plurality of micro-hole structures , the micro-perforated plate is opposite to the back plate , and the first side plate is opposite to the second side plate , and wherein the resonance chamber is spherical, the method characterized by setting said parameters of the low-frequency coupling sound-absorbing structure by establishing an objective function according to parameters of the low-frequency coupling sound-absorbing structure; optimizing the objective function by a simulated annealing optimization algorithm to obtain an optimal solution of the objective function; and taking each element in the optimal solution as the corresponding parameter. setting parameters of the low-frequency coupling sound-absorbing structure; and providing the low-frequency coupling sound-absorbing structure based on said parameters; wherein the low-frequency coupling sound-absorbing structure comprises: a peripheral chamber , a resonance chamber arranged inside the peripheral chamber , and an extension tube structure arranged inside the resonance chamber , wherein one end of the extension tube structure is connected to a chamber wall of the resonance chamber through a corresponding through hole; a peripheral chamber , a resonance chamber arranged inside the peripheral chamber , and an extension tube structure arranged inside the resonance chamber , wherein one end of the extension tube structure is connected to a chamber wall of the resonance chamber through a corresponding through hole; and wherein the peripheral chamber comprises a micro-perforated plate , a back plate , a first side plate , and a second side plate , wherein the micro-perforated plate is provided with a plurality of micro-hole structures , the micro-perforated plate is opposite to the back plate , and the first side plate is opposite to the second side plate , and wherein the resonance chamber is spherical, the method characterized by setting said parameters of the low-frequency coupling sound-absorbing structure by establishing an objective function according to parameters of the low-frequency coupling sound-absorbing structure; optimizing the objective function by a simulated annealing optimization algorithm to obtain an optimal solution of the objective function; and taking each element in the optimal solution as the corresponding parameter. establishing an objective function according to parameters of the low-frequency coupling sound-absorbing structure; optimizing the objective function by a simulated annealing optimization algorithm to obtain an optimal solution of the objective function; and taking each element in the optimal solution as the corresponding parameter. <EOS>