The invention discloses a method for detecting the content of boron in a dalteparin sodium production process, belonging to the field of biological medicines. The method disclosed by the invention comprises the following steps of: preparing a solution at first, detecting the corresponding intensity of boron in the solution by utilizing an inductively coupled ion spectrometer, and finally, processing data to obtain the content of boron in the dalteparin sodium production process. The method for detecting the content of boron in the dalteparin sodium production process disclosed by the invention is capable of detecting the content of boron simply, rapidly and accurately; therefore, the problem of unqualified finished products due to the fact that the content of boron cannot be detected in the dalteparin sodium production process is overcome; the product qualification rate can be effectively increased; the unqualified risk of heparin sodium products and the production cost of enterprises are greatly reduced; simultaneously, the drug use risk of people is greatly reduced; furthermore, the method is simple to operate; and thus, industrial popularization and application are facilitated.