Production method of 2(3)chloro-p-methyl benzyl chloride

The invention relates to a production method of 2(3)chloro-p-methyl benzyl chloride. The method comprises following steps: lower than 30% of p-methyl benzyl chloride is subjected to low-boiling collection and then is subjected to fractional distillation and purification in a distillation tower, and a finished product of 2-chloro-p-xylene and a finished product of p-methyl benzyl chloride are collected; the collected finished product of dichloro-paraxylene is introduced into a closed type chlorine introduction reaction kettle for a photo-chloriantion reaction, and a chlorination crude product of 2(3)chloro-p-methyl benzyl chloride is obtained; the chlorination crude product is fed into the distillation tower, fraction at the temperature of 85-105 DEG C and the pressure of 30 mmHg is collected, dichloro-paraxylene is recovered and is returned to the chlorine introduction reaction kettle for a chlorine introduction reaction continuously; 115-145 DEG C/30 mmHg of fraction is collected, and a finished product of 2