After graduating with a diploma from the Malaysian Institute of Art (MIA) under full scholarship, Ng Hon Loong trained in Paris, France from 1990 to 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). Influenced by Fauvism and Colour Field Painting, he emphasized the use of colors, flat composition, and expressive brushstrokes, while also integrating Chinese ink painting techniques and the concept of Yin and Yang in his work.

Upon returning to Malaysia, Ng became an art lecturer at the Equator Academy of Art & Design Penang. He committed himself as a full-time artist since 1998. Ng’s solo exhibitions were held at The Art Gallery Penang (1997), Metro Fine Art, Legend Hotel (2001), Ching Lotus Humanist Space, Penang (2002), Malacca House Museum (2002), 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 numerous 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).