A surgical access sleeve comprises a trocar sleeve (20). The trocar sleeve (20) includes: a trocar housing (22) including a housing base (22a) and a housing cover (22b) disposed on the housing base (22a), the housing base (22a) including an annular wall (221), a lower chamber (222) disposed inside the annular wall (221) and a first guide channel (2211) obliquely penetrating through the annular wall (221) but being not communicated with the lower chamber (222)； and a trocar cannula (21) including a first open end (21a) connected with the trocar housing (22), a second open end (21b) located opposite to the first open end (21a), and a tube wall (23) disposed between the first open end (21a) and the second open end (21b), the tube wall (23) including a first upper guide through hole (23a) and a first lower guide through hole (23b), wherein the first guide channel (2211), the first upper guide through hole (23a), and the first lower guide through hole (23b) are coaxially disposed along a virtual axis (25).
