The invention discloses a washing
machine and a washing method thereof. The washing
machine comprises an inner
barrel, a water
inlet channel, a storage box and a liquid pump, wherein the water
inlet channel is communicated with the inner
barrel so that water can be provided for the inner
barrel, a plurality of chambers which are mutually separated are arranged in the storage box, each chamber is used for accommodating one kind of liquid agent and is communicated with the inner barrel to put a proper amount of the liquid agent in the chamber into the inner barrel, and the liquid pump is arranged between the storage box and the inner barrel through an on-off piece and is used for controlling the storage box to put the liquid agents into the inner barrel. According to the washing
machine, the storage box provided with the chambers is arranged, various kinds of liquid agents can be stored in the storage box, and therefore, different kinds of liquid agents can be put into the inner barrel according to different requirements of users; due to the arrangement of the on-off piece, connection and disconnection between the chambers of the storage box and the inner barrel can be controlled, corresponding liquid agents can be put into the inner barrel according to the actual requirements of the users, and various kinds of liquid agents can be put into the inner barrel within one washing cycle.