A stroller includes a frame and a basket disposed on the frame. The basket includes a tube mount, a first tube member, a second tube member and a basket covering. The tube mount is disposed on the frame. The first tube member is connected to the tube mount. The second tube member is rotatably connected to the tube mount and switchable relative to the frame between a folded position and an unfolded position. The basket covering is disposed on the first tube member and the second tube member. A storage space is enclosed by the basket covering, and a volume of the storage space is adjustable by rotation of the second tube member relative to the frame. Furthermore, the present invention further discloses a related basket.