Novel synthesis process of atrazine

The invention discloses a novel synthesis process of atrazine, which has the following process steps of: adding a chemical compound containing a hydroxyl group into isopropylamine according to 1:1-1:3, and mixing to obtain a mixture solution for standby; feeding toluene into a reaction kettle, feeding cryosel into a cooling jacket to be stirred simultaneously, and then feeding cyanuric chloride; evenly adding the mixture solution into the reaction kettle; evenly adding 24 percent-30 percent of caustic soda liquid into the reaction kettle; evenly adding ethylamine into the reaction kettle; and then evenly adding 24 percent-30 percent of caustic soda liquid into the reaction kettle again, and finishing synthetic reaction. The novel synthesis process of the atrazine disclosed by the invention has the beneficial effects that: by adding the chemical compound containing the hydroxyl group into the isopropylamine, the synthetic reaction of the atrazine is more stable and balanced, meanwhile, impurity content generated by excessively vigorous reaction is reduced, and the content and the yield of the atrazine are effectively improved.