Disclosed is a multi-functional protective sleeve for a surgical soft tissue wound, including: an effluent/waste collection bag (1), where the effluent/waste collection bag (1) includes a bottom patch (101) and a surface patch (102); a bottom ring (3) to be inserted into a human body; a flip ring (4), where the flip ring (4) is located above the effluent/waste collection bag (1); a medical inner membrane (5), where the medical inner membrane (5) is connected to the bottom ring and the flip ring and form a surgery channel (6); and a positioning ring (7), where the positioning ring (7) is connected to a hole edge of a surgery through-hole (103) on the bottom patch (101) in a sealed manner, a medical outer membrane (8) is connected to the positioning ring (7)and the flip ring (4), and effluent flowing out from the surgery channel (6) gets over the flip ring (4), flows through an outer side of the medical outer membrane (8), and enters a bag. The protective sleeve has a simple structure, improves a surgical field, and prevents effluent pollution.