"''సత్యమేవ జయతే''" అనే నినాదాన్ని వ్యాపింపచేసాడు. అతడు గొప్ప విద్యావేత్త, కర్మయోగి, [[భగవద్గీత]]ను పాటించెను. సమకాలిక నాయకుల వలే కులమత భేదములను పోగొట్టడానికి ప్రయత్నించాడు.
దేశ అత్యున్నత పురస్కారమైన భారతరత్న అవార్డును కేంద్ర ప్రభుత్వం మదన్ మోహన్ మాలవ్యాకు 2014లో ప్రకటించింది. ఈయనతోపాటు భాజపా వ్యవస్థాపక అధ్యక్షుడు వాజ్పేయీకి భారతరత్న ప్రకటించింది.
Malviya started his journalistic career as the Editor of the Hindi daily '‘Hindosthan’' in 1887. Raja Rampal Singh of Kalakankar (Pratapgadh District) impressed by the speech and the personality of Malaviyaji, during the 2nd Congress Session in Calcutta held in 1886. requested Malviya to take up this position.<ref name="maha">http://www.mahamana.org/biography-.html</ref>
Then in 1889, he became the Editor of the "Indian Union". After the incorporation of "Indian Union" with the "Advocate" of Lucknow, Malviya started his own Hindi weekly "Abhyudaya"(1907-1909 under his editorship).<ref name="indiapost"/>
Also, his poems (sawaiyas) were published (sometime in 1883-84) under the pseudonym of ‘Makrand’ in ‘Harischandra Chandrika’ magazine (brought out by the famous Bharatendu), articles on religious and contemporary subjects published in ‘Hindi Pradeepa’.<ref name="maha"/>
When the English Government tried to bring in the Press Act and Newspaper Act in 1908, Malaviyaji started a campaign against the Act and called an All India Conference in Allahabad. He then realized the need of an English Newspaper to make the campaign effective throughout the country. As a result, with the help of Motilal Nehru. started an English daily the "Leader" in 1909, where he was Editor 1909-1911 and President 1911-1919.<ref name="maha"/>
In 1910, Malaviyaji started the Hindi paper `Maryada'.<ref name="maha"/>
In 1924, Malviya along with the help national leaders [[Lala Lajpat Rai]] and [[M. R. Jayakar]] and industrialist [[Ghanshyam Das Birla]], acquired [[Hindustan Times]] and saved it from an untimely demise .<ref>TJS George, Lessons in Journalism, 2007, Viva Books, New Delhi.</ref> Malaviya raised Rs.50,000 rupees to acquire the Hindustan Times and industrialist [[Ghanshyam Das Birla]] paid most of the cash. Malaviya was the Chairman of [[Hindustan Times]] from 1924 to 1946. His efforts resulted in the launch of its Hindi edition in 1936. The paper is now owned by the [[Birla family]].
In 1933, Malaviya started ''Sanatana Dharma'' from BHU, a magazine dedicated to religious, dharmic interests.<ref name="maha"/>