Thirsk and Malton MP Kevin Hollinrake has intervened over a report by Ofsted school inspectors, which gave Ampleforth College an 'inadequate' rating.
Ofsted reported a range of issues following its social care inspection of the Catholic boarding school, including 81 pupils attending a late night party.
The inspectors criticised the safeguarding and supervision of pupils.
The college hit back, accusing Ofsted of 'factual inaccuracies' and 'ill-founded conclusions' in a detailed rebuttal of the allegations, stressing the school was safe for its pupils.
The MP posted on his website: "In recent weeks I have been working closely with Ampleforth College relating to Ofsted's assessment of the school after its inspection.
"I want to make clear that I am supportive of the school in this situation, and I feel that there is a fundamental dispute of the facts behind the assessment, that needs to be resolved.
"I am continuing to work with the school, Ofsted and the relevant ministers to do whatever I can to resolve this issue."
He added: "I will provide further updates in due course."
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