A saddle system, comprising a follower device and a saddle, wherein the follower device is configured to be arranged on a seat rod of a bicycle for mounting the saddle, and the follower device comprises a left and right rotating assembly and a left and right turnover assembly which are interconnected, wherein during an use of the saddle system, the left and right rotating assembly is rotated leftward or rightward with respect to the left and right turnover assembly, so that the saddle rotates leftward or rightward with respect to the seat rod, the left and right turnover assembly is turned over leftward or rightward with respect to the left and right rotating assembly, so that the saddle is turned over leftward or rightward with respect to the seat rod; wherein the left and right rotating assembly is configured to be mounted on the seat rod of the bicycle, the left and right turnover assembly is mounted on the left and right rotating assembly, and the saddle is mounted on the left and right turnover assembly; wherein the left and right rotating assembly comprises a mounting part and a rotating part, wherein the mounting part is configured to be fixedly arranged on the seat rod, the rotating part is rotatablely mounted on the mounting part leftward or rightward, and the left and right turnover assembly is mounted on the rotating part; wherein the mounting part is a sleeve which is configured to be fixedly connected to the seat rod, and the rotating part is a rod inserted into the sleeve; wherein the left and right rotating assembly further comprises a first elastic return member, the first elastic return member is mounted between the rotating part and the mounting part; characterised in that the first elastic return member comprises two springs, a spring mounting groove is provided on one of the mounting part and the rotating part, and a cooperate protrusion is provided on the other one of the mounting part and the rotating part, and the two springs are respectively mounted between the spring mounting groove and the cooperate protrusion. wherein the left and right rotating assembly is configured to be mounted on the seat rod of the bicycle, the left and right turnover assembly is mounted on the left and right rotating assembly, and the saddle is mounted on the left and right turnover assembly; wherein the left and right rotating assembly comprises a mounting part and a rotating part, wherein the mounting part is configured to be fixedly arranged on the seat rod, the rotating part is rotatablely mounted on the mounting part leftward or rightward, and the left and right turnover assembly is mounted on the rotating part; wherein the mounting part is a sleeve which is configured to be fixedly connected to the seat rod, and the rotating part is a rod inserted into the sleeve; wherein the left and right rotating assembly further comprises a first elastic return member, the first elastic return member is mounted between the rotating part and the mounting part; characterised in that the first elastic return member comprises two springs, a spring mounting groove is provided on one of the mounting part and the rotating part, and a cooperate protrusion is provided on the other one of the mounting part and the rotating part, and the two springs are respectively mounted between the spring mounting groove and the cooperate protrusion.