The utility model relates to a chest strap for a pet, which is mainly composed of a strap body and a chest pad. The strap body is formed by a first belt body and a second belt body overlapping in a cross shape, and is at both ends of the first belt body. A first joint member is respectively disposed, and a first ring member and a second ring member are respectively connected to the two ends of the second belt body, and a second joint member is connected to the first ring member； and the chest pad has a The front end and the rear end are respectively provided with a front joint member and a chest front belt on both sides of the front end, and a rear joint member is respectively connected to the two sides of the rear end, and the back joint of the chest pad is The detachable joint is correspondingly coupled to each of the first joint members, and the front end of the chest pad is detachably coupled to the second joint member, and the chest strap is directly connected to the first ring member, so that the second belt body is The second coupling member and the chest strap can be simultaneously connected to the first ring member.一種寵物用胸背帶，主要由一背帶本體及一胸墊所組成，背帶本體由一第一帶體與一第二帶體呈十字狀交疊設置而成，並於第一帶體之兩端分別設有一第一結合件，而第二帶體之兩端分別接設有一第一環件及一第二環件，第一環件上並接設有一第二結合件；而胸墊具有一前端及一後端，並於前端之兩側分別接設有一前結合件及一胸前帶，而後端之兩側分別接設有一後結合件，胸墊以其後端之各後結合件可拆卸地對應結合於各第一結合件上，而胸墊前端之前結合件則可拆卸地結合於第二結合件上，且以胸前帶直接連接於第一環件上，使第二帶體、第二結合件與胸前帶可同時接設於第一環件上。
