Sometimes it’s inevitable that tables need to be on more than one page. In that case it is usually best for the break to be between rows not within them. That way people can read the whole row before turning the page. It is easy to get Word to do this automatically. Here is how.
Below is an example of a table breaking across a page in the middle of a row
Select the entire table and then go to Table Tools > Layout > Properties.
A new window like this seen below will open. On the Row tab, untick Allow row to break across pages. Then click OK.
And now your table will break between the rows rather than in the middle of them, even if you move the table about in the document.