A laundry treating apparatus , comprising: a laundry accommodation device that provides a space in which laundry is accommodated, the laundry accommodation device having an exhaust device that exhausts air and a supply device that supplies air; a circulation passage that guides air exhausted from the exhaust device to the supply device , the circulation passage having an inlet that accommodates the exhaust device ; a heat exchanger provided in the circulation passage ; a filter frame provided between the heat exchanger and the inlet ; a filter fixed to the filter frame and provided in the circulation passage ; and a filter washer fixed to the filter frame , that supplies washing water to the filter , wherein the filter frame comprises: a body provided in the circulation passage ; and an open surface provided to pass through the body , wherein the filter is fixed to the open surface , and characterized in that the filter washer is fixed to the body and comprises: a passage body that receives washing water thereinto, and provided above the open surface ; one or more discharge holes that discharge the washing water inside of the passage body to the filter , and formed at the passage body ; and a connection body exposed to an outside of the circulation passage by passing through the circulation passage and connected to a water source so as to supply the washing water to the passage body . a laundry accommodation device that provides a space in which laundry is accommodated, the laundry accommodation device having an exhaust device that exhausts air and a supply device that supplies air; a circulation passage that guides air exhausted from the exhaust device to the supply device , the circulation passage having an inlet that accommodates the exhaust device ; a heat exchanger provided in the circulation passage ; a filter frame provided between the heat exchanger and the inlet ; a filter fixed to the filter frame and provided in the circulation passage ; and a filter washer fixed to the filter frame , that supplies washing water to the filter , wherein the filter frame comprises: a body provided in the circulation passage ; and an open surface provided to pass through the body , wherein the filter is fixed to the open surface , and characterized in that the filter washer is fixed to the body and comprises: a passage body that receives washing water thereinto, and provided above the open surface ; one or more discharge holes that discharge the washing water inside of the passage body to the filter , and formed at the passage body ; and a connection body exposed to an outside of the circulation passage by passing through the circulation passage and connected to a water source so as to supply the washing water to the passage body . a body provided in the circulation passage ; and an open surface provided to pass through the body , wherein the filter is fixed to the open surface , and characterized in that the filter washer is fixed to the body and comprises: a passage body that receives washing water thereinto, and provided above the open surface ; one or more discharge holes that discharge the washing water inside of the passage body to the filter , and formed at the passage body ; and a connection body exposed to an outside of the circulation passage by passing through the circulation passage and connected to a water source so as to supply the washing water to the passage body . a passage body that receives washing water thereinto, and provided above the open surface ; one or more discharge holes that discharge the washing water inside of the passage body to the filter , and formed at the passage body ; and a connection body exposed to an outside of the circulation passage by passing through the circulation passage and connected to a water source so as to supply the washing water to the passage body . <EOS>