Preparation method of fructus evodiae extract, composition containing fructus evodiae extract and application

The invention belongs to the technical field of fructus evodiae extraction, and discloses a preparation method of fructus evodiae extract, a composition containing the fructus evodiae extract and application. The method comprises the following steps: preparing fructus evodiae fruits into powder, adding water for soaking, and extracting for 4 hours by a steam distillation method to obtain a volatile extract and residues; soaking the residues in an ethanol solution, performing ultrasonic treatment for 30-60 minutes under a constant-temperature condition, replenishing water into the residues, reducing the pressure under the constant-temperature condition until bubbles emerge from the residues, and continuously extracting for 60 minutes under the current pressure to obtain an alkaloid extract solution; recovering ethanol in the alkaloid extract solution by a rotary distillation method to obtain an alkaloid extract; and dissolving and mixing the obtained alkaloid extract and the volatile extract with 1, 3-propylen