A watch band (100, 200), comprising a plurality of sequentially connected chain elements (10). A connecting portion (101) and a connecting groove (102) are provided on each of the chain elements (10). The connecting portion (101) is connected to the connecting groove (102) on another adjacent chain element (10) by means of a connecting mechanism (1). In a watch band (100), the connecting mechanism (1) comprises a button assembly (1a) and two ejector pin assemblies (1b) symmetrically provided at two sides of the button assembly (1a), wherein the button assembly (1a) comprises a button (11) and a first spring (12), and each of the ejector pin assemblies (1b) comprises an ejector pin (13) and a second spring (14). Two ejector pins (13) can simultaneously move close to each other when the button (11) is pressed, and insertion ends (132) of the two ejector pins (13) are removed from blind holes (120). In another watch band (200), a connecting mechanism (1) comprises a pressing assembly (2a), a linkage rod (2b), and an ejector pin assembly (2c). The linkage rod (2b) and an ejector pin (26) can simultaneously move when a pressing rod (21) of the pressing assembly (2a) is pressed, thereby achieving the separation of two chain elements. In the two watch bands, two chain elements can be separated by pressing a button or a pressing rod, without the help of other tools, and a user can dismount the chain elements by self, making it convenient to use.