His poems and orations were published after his death.
He wrote also forensic speeches; Phrynichus, in Photius, ranks him amongst the best orators, and mentions his orations as the standard of the pure Attic style.
Of the seven Verrine orations only two were actually delivered; the remaining five were compiled from the depositions of witnesses, and published after the flight of Verres.
See the orations of Cicero De lege agraria, with the introduction in G.
The lyric poems of Kolcsey can hardly be surpassed, whilst his orations, and markedly the Emlek beszed Kazinczy felett (Commemorative Speech on Kazinczy), exhibit not only his own powers, but the singular excellence of the Magyar language as an oratorical medium.