Novel plastic bottle cap

The invention discloses a novel plastic bottle cap. The cap comprises a cover body (11) and a cover cap (12), wherein the cover body (11) can be buckled with the bottle body (2), and the cover cap (12) is integrally formed with the cover body (11) and can be overturned and buckled relative to the cover body (11), wherein the cover body (11) comprises an annular part (111), an annular buckling rib(112) which protrudes out and can be buckled with a boss (21) on the bottle body (2) is arranged on the inner wall of the annular part (111), the annular part (111) is provided with an easy-to-tear area (113), the thickness of the easy-to-tear region (113) is smaller than that of other regions on the annular portion (111), when an external force is applied to the cover cap (12), the cover body (11) is torn off in the easy-to-tear region (113). The cap is simple in structure and can be conveniently separated from the bottle body. 本发明公开了种新型塑料瓶盖，包括能与瓶体(2)扣接的盖体(11)和与盖体(11)体成型并能相对盖体(11)翻转扣合的盖帽(12)，所述的盖体(11)包括环状部(111)，所述的环状