本发明涉及一种对乙酰氨基酚酰化料液的结晶处理过程,其特征在于,该过程包括以下步骤:对结晶容器进行预热的预热步骤;和向所述结晶容器内导入所述酰化料液并使所述酰化料液进行结晶处理的结晶处理步骤。通过使结晶容器预先预热到规定温度,有效地避免了高温酰化物料的料液对结晶容 The present invention relates to a crystallization process of paracetamol feed liquid, characterized in that the process comprises the following steps: a preheating step of preheating a crystallization vessel; and a step of introducing the acyl group into the crystallization vessel The crystallization of the liquid material and the crystallization of the acylation liquid crystal processing steps. By preheating the crystallization vessel to a prescribed temperature, the effect of the feed liquid of the high-temperature acylation material on the crystallization capacity