A hand-held laundry treating apparatus comprising: a portable body for storing wash water and contaminated water, supplying wash water according to positive pressure air supplied into the portable body, collecting contaminated water generated during washing of laundry using negative pressure air created during generation of the positive pressure air, and washing a local portion of the laundry while being in contact with the laundry placed on a vertical plane or a horizontal plane; and a water tank separately mounted at the portable body for storing wash water to be supplied when washing the local portion of the laundry placed on the vertical plane or the horizontal plane and contaminated water generated after washing of the laundry, the water tank comprising a wash water storage unit for storing wash water supplied by the pressurized air of the predetermined pressure supplied from the fluid feeding unit and a contaminated water storage unit for collecting and storing contaminated water generated after washing is performed, wherein the portable body comprises a housing forming an external appearance thereof, and the housing is provided at a middle part thereof with the water tank mounting unit at which the water tank is mounted, and wherein the portable body comprises: a fluid feeding unit for supplying and collecting air of a predetermined pressure to circulate the air; a washing unit for spraying the wash water to the laundry and collecting the contaminated water; and a vibration unit for applying vibration to the laundry when the wash water is sprayed to the laundry, whereby said vibration unit comprises a solenoid performing a linear reciprocating motion and a vibrator coupled to an end of the solenoid for applying vibration to the laundry. a portable body for storing wash water and contaminated water, supplying wash water according to positive pressure air supplied into the portable body, collecting contaminated water generated during washing of laundry using negative pressure air created during generation of the positive pressure air, and washing a local portion of the laundry while being in contact with the laundry placed on a vertical plane or a horizontal plane; and a water tank separately mounted at the portable body for storing wash water to be supplied when washing the local portion of the laundry placed on the vertical plane or the horizontal plane and contaminated water generated after washing of the laundry, the water tank comprising a wash water storage unit for storing wash water supplied by the pressurized air of the predetermined pressure supplied from the fluid feeding unit and a contaminated water storage unit for collecting and storing contaminated water generated after washing is performed, wherein the portable body comprises a housing forming an external appearance thereof, and the housing is provided at a middle part thereof with the water tank mounting unit at which the water tank is mounted, and wherein the portable body comprises: a fluid feeding unit for supplying and collecting air of a predetermined pressure to circulate the air; a washing unit for spraying the wash water to the laundry and collecting the contaminated water; and a vibration unit for applying vibration to the laundry when the wash water is sprayed to the laundry, whereby said vibration unit comprises a solenoid performing a linear reciprocating motion and a vibrator coupled to an end of the solenoid for applying vibration to the laundry. a fluid feeding unit for supplying and collecting air of a predetermined pressure to circulate the air; a washing unit for spraying the wash water to the laundry and collecting the contaminated water; and a vibration unit for applying vibration to the laundry when the wash water is sprayed to the laundry, whereby said vibration unit comprises a solenoid performing a linear reciprocating motion and a vibrator coupled to an end of the solenoid for applying vibration to the laundry.