The invention discloses a method for determining the content of mineral elements in a formulated food which is used for special medical application, and belongs to the technical field of component detection for a medical food. According to the method, an inductively-coupled plasma atomic emission spectrometer can determine the content of eight mineral elements, including sodium, potassium, calcium, magnesium, zinc, iron, copper and manganese, in a formulated food which is used for special medical application, at the same time. The method includes preparation of solutions, pretreatment of the solutions, preparation of a mixed standard solution and determination. The solutions include a blank solution and a sample solution. The pretreatment of the solutions is carried out through a nitric acid and microwave digestion method. The solutions are pre-digested through nitric acid and are digested via a microwave digestion device, the obtained products are diluted, and the diluted products undergo ICP-OES determination. The method is short in pretreatment time, less in sample consumption, complete in digestion degree, and high in efficiency, and allows high-temperature operation to be prevented. The sample can be well atomized into a stable plasma state, so that the RSD value in a determination process is efficiently reduced, and the determination result is real, stable and reliable.