Firstly, the references are numbered, and the detailed process of numbering is shown in the figure.

Then, we put the cursor at the position where the reference needs to be inserted, and select "Cross Reference" in the "Insert" module of Word;

In the pop-up dialog box, select the literature to be cited;

Note: The "Insert Hyperlink" option here can be ticked.

Click the "Insert" button, and the reference has been correctly inserted in this position;

When the number of our references changes, for example, the first reference becomes the third, we only need to select the previously inserted reference, right-click the update field, and the reference will be automatically updated!