A washing ball having a sterilization function is introduced. To this end, in a washing ball including an outer housing, a sterilization housing and a water-level sensor unit, the washing ball comprises: the outer housing configured with a plurality of outer box members formed in a spherical shape, each of which has a plurality of holes； the sterilization housing selectively coupled to the outer housing inside the outer housing and configured with a plurality of inner box members having a plurality of LED sterilization modules coupled thereto； the water-level sensor unit installed in the sterilization housing to measure how much the washing ball is dipped in water； and a control unit installed to be close to the water-level sensor unit to control whether or not to operate the LED sterilization modules according to a signal of the water-level sensor unit, wherein a first connection member formed to be extended toward the center of the outer housing by a predetermined length and having a coupling hole provided therein is formed on at least one of the outer box members forming the outer housing to be coupled to the inner box member forming the sterilization housing, and a second connection member formed to be extended in the radial direction of the sterilization housing by a predetermined length is formed on at least one of the inner box members forming the sterilization housing to be selectively coupled to the first connection member at a position corresponding to the first connection member. According to the washing ball of the present invention formed as described above, a sterilization function is provided, and moreover, the sterilization function is automatically disabled when the washing function is not activated, and the sterilization function begins only when the washing ball is completely submerged in the water and a user turns on the washing function.살균기능이 구비된 세탁볼이 소개된다.이를 위해 본 발명은 외부하우징과 살균하우징 및 수위센서부를 포함하는 세탁볼에 있어서, 다수개의 타공이 형성된 복수개의 외함부재가 구형 형상으로 이루어진 외부하우
