A kind of headband improvement of breathing mask,It is main include one thereon,Lower section respectively offers the brain Hou constraint portion of hollow-out parts,With connect set four, portion of what brain Hou constraint corner it is upper,Lower threading,And on enabling,Lower threading can be to tailor and sew up in what brain Hou constraint portion individually,A kind of S-shaped curved elastic linking part set is set among the top hollow-out parts in brain Hou constraint portion simultaneously,And again can brain Hou constraint portion and it is upper,The surface of lower threading offers number length and engraves hole; Therefore other than engraving the elastic telescoping that material is promoted in hole through each director,And the elasticity linking part allows the hollow-out parts at this,When being strained at effect by threading,Will not what to occur what tight and can lead to the problem of outside partially sliding,Brain Hou constraint portion is more allowed uniformly to be distributed the binding force of user's Hou brain,Wearing Hou is allowed to comfort,And upper,If lower threading is adopted distinctly to tailor and be sewed up in what brain Hou constraint portion again,Can then save manufacture material,Avoid unnecessary waste.一種呼吸面罩的頭帶改良,主要包括一其上、下方各開設有鏤空部的腦後束縛部,與接設於腦後束縛部四個角落處的上、下穿帶,並令上、下穿帶可為個別裁製而縫接於腦後束縛部上,同時在腦後束縛部的上方鏤空部中間設一類呈S形彎設的彈性連結部,並又可在腦後束縛部與上、下穿帶的表面開設有數長鏤孔;故除了透過各處長鏤孔增進材料的彈力伸縮性以外,且該彈性連結部讓該處的鏤空部,在受到穿帶的緊拉作用時,不致於會發生過於緊繃以及會產生偏滑的問題外,更讓腦後束縛部對使用者後腦的束縛力均勻的分佈,讓穿戴後更感舒適,且上、下穿帶若採各別裁製再縫接於腦後束縛部上,則可節省製造材料、避免不必要的浪費。