A foot massager includes a plurality of roller massagers, two rotational massagers, a power source, a forward-and-backward-movable device, a first transmission device, and a second transmission device. The power source rotates clockwise and drives the first transmission device and the second transmission device, such that the first transmission device drives a one-way bearing to perform idle rotation and drives the roller massagers to perform rolling massage, whereas the second transmission device drives the two rotational massagers to perform rotational massage. The power source rotates anticlockwise and drives the first transmission device and the second transmission device, such that the first transmission device drives the one-way bearing to drive the foot massaging base to move forward and backward in its entirety and drives the roller massagers to perform rolling massage, whereas the second transmission device drives the two rotational massagers to perform rotational massage.
