To put a blank page into your Word document, place the cursor where you want the new page to begin and then click Insert > Blank Page. The blank page opens, ready for whatever you want to add.
Another option when you need a little space is to insert a page break. The difference is that Insert > Blank Page puts an entire blank page into your document, whereas Insert > Page Break simply pushes whatever comes after the break to the top of the next page. Learn more via Add a page break.
Tip: If you’re formatting a complex document and you quickly want to add or look for blank pages, page breaks, or other elements, click View > Navigation Pane > Pages to see what’s where.
To remove a blank page from your document, see Delete a blank page.