Wool fiber processing method and application thereof in fabric

The invention relates to a wool fiber processing method and an application thereof in fabric. The processing method comprises the following steps: step one, carrying out chlorination; step two, removing chlorine; step three, performing neutralization; step four, rinsing; step five, performing a resin treatment; step six, carrying out a softening treatment; and step seven, baking; and is characterized in that in the chlorination step, water and chlorine are added into a chlorination machine; the water temperature is controlled in a range of 8 to 10 DEG C; the initial addition amount of chlorine is 0.3 g/L, the addition amount of chlorine is 2.0 wt% of wool weight during the production process; the pH value of water treatment liquid is controlled in a range of 1.5 to 2.0; and the speed of the chlorination machine is 5 meters per minute. After the treatment, the anti-shrinkage performance and machine washable property of wool fiber are both enhanced, and at the same time, the elasticity, anti-wrinkle performance, strength, hand feeling, and filling power of wool fiber are all improved.