The Ministry of Foreign Affairs and International Co-operation issued a statement on Wednesday denying "the allegations promoted by various non-governmental organisations regarding the case of Emirati citizen Ahmed Mansoor".
Mansoor is serving a sentence of 10 years in prison on charges including inciting hatred and defaming the UAE.
"All measures taken by the UAE judiciary against Mansoor, beginning from the investigation and leveling of charges against him and concluding with the court’s ruling, came within the legal framework stipulated by relevant national legislation," it said.
The ministry called on NGOs "that have promoted these misleading accusations to operate with accuracy and objectivity while obtaining information from verified sources only".
Mansoor is in good health and receives regular visits from his family, the most recent of which was in November, the ministry said.
"Emirati society is one of tolerance in which all members live together in harmony while committed to the values enshrined within the UAE Constitution and UAE law, which guarantee freedoms such as the freedom of expression insofar as the law is not broken and social stability is not affected," it said.
"The UAE maintains an unwavering commitment to and respect for human rights as put forth by the country’s charters and continues to co-operate with the United Nations and international entities in upholding global commitments created for this purpose."