The present disclosure relates to the technical field of decorative lamps and discloses a waterproof and shatterproof light string, including an electric wire. A female socket is arranged at one end of the electric wire, and a male plug capable of being plugged and electrically connected with the female socket is arranged at the other end of the electric wire, and a plurality of lamps are arranged in the middle of the electric wire in parallel; the lamp includes a lamp holder and a bulb connected with the lamp holder, and a gap is arranged between the lamp holder and the bulb; a water discharge port is formed in one side of the lamp holder; and the bulb includes a shatterproof plastic bulb shell.