A Liberal MP already mired in false claims over how long she has lived in her electorate is now facing questions over past claims that she holds two undergraduate university degrees.

North Shore MP Felicity Wilson said when nominating for party positions including a vice-presidency of the exclusive and powerful NSW Liberal state executive that she held two undergraduate university degrees.

But this is at odds with Macquarie University's records and Ms Wilson's own parliamentary biography.

In April Ms Wilson (pictured) promised to be more careful with her words after scraping into Parliament in a by-election despite being forced to retract claims made in a statutory declaration and nomination form that she had lived on the north shore for 10 years.