The invention discloses a method for producing diacetone alcohol through a continuous method. The method comprises the following steps: continuously feeding acetone into a continuous reactor through a pump, continuously conveying material liquid after reaction to a distillation tower, continuously distilling in the distillation tower for removing most unreacted acetone, continuously conveying material liquid to a secondary distillation tower, distilling for removing residual acetone so as to obtain a diacetone alcohol crude product, continuously conveying acetone distilled out from the distillation tower and the secondary distillation tower to the continuous reactor for continuous reaction, continuously conveying the diacetone alcohol crude product obtained through distillation to a product distillation tower and continuously separating a diacetone alcohol finished product from the distillation tower. The method for producing diacetone alcohol through the continuous method, provided by the invention, has the characteristics that equipment investment is less, high productivity, low energy consumption in the production process, and no three waste emission are realized, and the product diacetone alcohol is stable in quality, 99.5-99.9% in the content and high in quality.