After graduating with a diploma from the Malaysian Institute of Art (MIA) under full scholarship, Ng Hon Loong was trained in Paris, France during 1990 – 1992 at several institutions including Ecole Nationale Superieure des Beaux-Arts (ENSBA), Ecole Nationale Superieure des Arts Decoratifs (ENSAD), and Ecole Nationale Superieure des Arts Appliques et des Metiers d'Art (ENSAAMA). During his time in Paris, he was heavily influenced by two major Western art movements - Fauvism and Colour Field Painting, which paid emphasis on the use of colours as the subject and conveyor of emotions, flat composition, and expressive brushstrokes. Ng also integrated Chinese ink painting techniques and the concept of the harmonious balance of Yin and Yang in his paintings.

After returning to Malaysia, Ng took up the role of an art lecturer at the Equator Academy of Art & Design Penang. He committed himself as a full-time practicing artist since 1998. Ng’s solo exhibitions were held at The Art Gallery Penang (1997); World Marina Resort, Negeri Sembilan (1999); Metro Fine Art, Legend Hotel (2001); Balai Berita NSTP, Kuala Lumpur (2005); Yan Fine Art, Kuala Lumpur (2007); Penang State Art Gallery (2008); Malacca State Art Gallery (2010); Jeth Art Gallery, Kuala Lumpur (2015); and Younie Gallery, Kuala Lumpur (2019). He participated in various group shows and expos including Artist Art Fair Malaysia (2015), PWS Art Expo Malaysia (2016), Art Asia@KL Hotel Art Expo (2018), and Art Asia@KL Asian Warisan Fair (2019).