A control method of a fabric treatment apparatus having a drying function (1) is disclosed. The control method includes supplying high-temperature hot air (S11) into a treatment space (S) in which fabric is treated through operation of a drying heater (42), sensing (S12) a temperature (T) of the treatment space(S), and spraying steam (S14) into the treatment space (S) through a steam spray device (100) when the sensed temperature (T) of the treatment space (S) is equal to or greater than a set temperature (T SET ).