Montreux's vast corpus spans theater, the novel, the pastoral, history, poetry and spiritual reflection and he shows a pronounced preoccupation with moral questions (such as chastity).
With Béroalde de Verville, Montreux represents a literature of transition from the Valois court (and the generation of "La Pléiade") to the Bourbon court of Henry IV and the baroque, and both of these authors attempted to compete with the translation of foreign masterpieces by the creation of original works in French.
His most famous work is an immense pastoral novel/play the Bergeries de Julliette in five volumes (1585–1598) (inspired by the Diane of Jorge de Montemayor and the pastoral works of Ariosto and Tasso) which uses a prose frame in which is inserted short stories and short plays in verse.
Montreux is responsible for several plays: four tragedies Tragédie du jeune Cyrus (drawn from Xenophon, 1581), Isabelle (1594), Cléopâtre (1594), Sophonisbe (1601); two comedies La Joyeuse (drawn from Xenophon, 1581) and Joseph le Chaste; 3 pastorals Athlette (1585), Diane (1592) Arimène ou le berger désespéré (1597).
He also wrote religious poems, a history of the Ottoman Empire from 1565 to 1606, and a long work of spiritual philosophy L'Homme et ses dignités (1599).