Schuchardt grew up in Gotha. From 1859–1864, he studied in Jena and Bonn with many important linguists of the time, notably August Schleicher and Kuno Fischer in Jena, as well as Friedrich Ritschl and Otto Jahn in Bonn. In 1864, Schuchardt earned a doctorate with a dissertation entitled De sermonis Romani plebei vocalibus. Based upon a perusal of "an incredible amount of texts never really considered before him", it was subsequently published 1866-1868 in a three-volume German language edition as Der Vokalismus des Vulgärlateins. In 1870, Schuchardt was promoted to professor at the University of Leipzig, and in 1873, he became professor of Romance philology at the University of Halle, which was then a stronghold of the neogrammarians. Meanwhile, Schuchardt primarily worked on traditional topics in Romance philology with a strong historic orientation but also developed an interest in language contact and language mixing.
In 1876, Schuchardt became chair for Romance Philology at the University of Graz, with the help of Johannes Schmidt. He did field work in Wales and Spain where he collected material for his Celtic and Basque/Romance research. Schuchardt became interested in two new fields, creole and Basque linguistics, thereby becoming a respected forefather of both linguistic subdisciplines. He is also the first linguist to have promulgated seriously the idea that creole languages are in no way inferior to other languages. With his 1888 publication "Auf Anlass des Volapüks" he promoted the creation of a new auxiliary world language for all nations. In the same period, he published an influential critique of the methods of the neogrammarians with the title "Über die Lautgesetze. Gegen die Junggrammatiker". Schuchardt may be most eminent as a vascologist. In 1887, L.L. Bonaparte arranged Schuchardt's journey to the village of Sara, where he did field work and seems to have learned Basque. Following this journey, he published numerous works on Basque and Romano-Basque, but he never returned to the Basque Country. In various publications, Schuchardt discussed possible relationships of Basque with other language families—today Basque is known as a language isolate. Schuchardt firmly sided with the outdated viewpoint of the Vasco-Iberian hypothesis, in stark contrast to his earlier open-mindedness. Similarly, in the discussion on ergativity, then-current, Schuchardt firmly defended the idea of the ergative construction as an obligatorily-passive clause. He thus specifically opposed Nikolaus Finck in Vienna with whom he had a scientific dispute in a succession of articles.
Late period
Although Schuchardt was invited to professorships in Budapest and Leipzig, he refused to leave Graz. In 1900, however, Schuchardt retired early from his chair. Being then free from his teaching duties, he undertook extended trips to Southern Italy, Egypt, and Scandinavia. He then built a huge villa in Graz for himself and his huge library, and named it 'Villa Malvine', after his beloved mother. The last two decades of his life, he worked predominantly on Basque. Disappointed by the "unjust peace" following World War I, Italian irredentism and French nationalism, he was no longer interested in Romance research, partly even giving up contacts with colleagues from these countries. In an article, he gives some oral history insights into his youth and historic events of that time as well as his viewpoint of the outcome of World War I.
Schuchardt today
Hugo Schuchardt is one of the most eminent linguists of the Germanic tradition within Romance Philology. Today, of course, his contribution is mainly of historiographic interest. For the Basque community, he is one of the most eminent foreign scholars, beside Wilhelm von Humboldt and only few others. His huge library became part of the university library of Graz; his 'Villa Malvine' hosted the Romance philology department for a long time, but is today an administrative building of the university. Researchers in Graz have constantly worked on Schuchardt ever since, among them Michaela Wolf and the linguist Bernhard Hurch who finally even managed to compile an online archive of the entire work of Schuchardt. His most lasting contributions to modern linguistics, though, are the elaboration, with Johannes Schmidt, of the Wave Model of language change and his substantial work laying the foundations of modern creolistics.