2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186581We investigate the M5-brane description of the Wilson surface operators in six-dimensional (2,0) superconformal field theory from AdS/CFT correspondence. We consider the Wilson surface operators in high-dimensional representation, whose description could be M5-brane string soliton solutions in $AdS_7\times S^4$ background. We construct such string soliton solutions from the covariant M5-brane equations of motion and discuss their properties. The supersymmetry analysis shows that these solutions are half-BPS. We also discuss the subtle issue on the boundary terms.30 pages, Latex; little revision;Typos corrected, references added, JHEP published versionHigh Energy Physics - Theorytext