Piet Kuijken studied with Jan Vermeulen, Jan Michiels, Arie van Lysebeth and André De Groote. He graduated with the highest honours from the piano and chamber music classes. He continued his studies at the University of Indiana with Menahem Pressler and has participated in numerous masterclasses.

He has cooperated with the renowned New Music Ensemble, and won the Schumann Concerto Competition. He has appeared at solo recitals, played with chamber ensembles and orchestras all over the world. Since 1988, he has been linked with the Prometheus Ensemble, and has appeared in duos. He has also played with the Oxalys, Ictus and Ensor ensembles, Anne Cambier, Olga Pasiecznik, and the Cinque Venti ensemble.

His discography includes works by Luc van Hove which he recorded with the Prometheus Ensemble, the chamber works of Debussy recorded with the Kuijken family (awarded the Prix Choc 2000 from Le Monde de la Musique magazine), as well as the complete viola da gamba sonatas of J. S. Bach (with Wieland Kuijken). With Karel Steylaerts, he recorded the complete cello and piano works of Joseph Jongen.

His vast repertoire spans from Baroque to modern music. He performs on the harpsichord, pianos of various historical periods, and on modern instruments.

Piet Kuijken is a lecturer at the Royal Conservatory of Brussels and the Music Academy in Anderlecht.