A non-invasive wound closure component for protecting a patient's wound, the device comprises a first belt body, a fixing unit, a second belt body and a buckle unit.The first band can be attached to one side of the wound.The fixing unit comprises a first base and a wing clamping part.The first base is combined with the wing clamping part to form a holding space and an opening.The wing clamping part extends a first protrusion which is formed in the holding space.The second band can be attached to the other side of the wound.The buckle unit comprises a second base and a chain.One end of the chain is connected with the second base, and the other end of the chain is a free end.When the holding space covers at least a part of the chain, the tension strength between the fixing unit and the fastening unit can be adjusted by contacting the first protrusion with at least one of the second protrusions.一種非侵入傷口閉合組件供保護患者的傷口,該裝置包含第一帶體、固定單元、第二帶體與扣合單元。該第一帶體能夠貼附於該傷口之一側。該固定單元包含第一基座與翼狀夾持部。該第一基座結合該翼狀夾持部以形成容置空間與開口。該翼狀夾持部延伸出第一突出件,而該第一突出件形成在該容置空間。該第二帶體能夠貼附於該傷口之另一側。該扣合單元包含第二基座與鍊條。該鍊條的一端接合該第二基座,該鍊條的另一端為自由端。當該容置空間包覆該鍊條之至少一部份時,藉由該等第二突出件之至少一者接觸該第一突出件,可調整該固定單元與該扣合單元之間的張力強度。