Ong was born in 1900 during the final years of the Qing dynasty. His parents were
Longyan Hokkiens. Ong learned traditional
Chinese painting and
Chinese Calligraphy at a young age and also excelled academically in other disciplines. In 1919, at age 19 he went to
Paris after winning a Chinese Government Scholarship. He was among the first batch of only a few Chinese students at that time studying in Paris. Ong's fluency in French and mastery of Chinese Painting naturally placed him as mentor to those few Chinese students, one of whom was
Xu Beihong () who later became a good friend. In Paris, Ong studied at
École Nationale Supérieure des Beaux-Arts, the National School of Fine Arts of the
École des Beaux-Arts where he learned to combine Western art techniques and perspectives with traditional Chinese painting techniques. In addition, he obtained a Master of Arts in Law, French and Political Science from the
University of Paris where he also enrolled for his Doctorate. Upon his return to China in 1927, his fame as an artist grew as he was recognized as one of the very few Paris trained Chinese artists who were exposed to the art techniques of both the East and West. He entered Government service pursuant to conditions of the scholarship and held various positions including Secretary of the
Executive Yuan; professor at the
National Central University (now
Nanjing University), and editor of Nanking Morning Press. It was during his time in
Nanjing that Ong produced one of his monumental works – a compilation of paintings of Chrysanthemums with accompanying poems and commentary from well known persons. This compilation was succinctly termed the "Book of Chrysanthemums"
(see section below). These were paintings of the vast variety of Chrysanthemums planted at the newly completed mausoleum of
Dr. Sun Yat-sen (), the "Father of Modern China", at Nanjing, the former
Capital of China. During the
Second Sino-Japanese War, Professor Ong exhibited his works extensively where all the proceeds were given to the war relief effort. The war destroyed many of the paintings but he managed to salvage many important works. The advancing Japanese army forced him to move his exhibitions to Hong Kong and later to Singapore and Malaysia. All the exhibitions were solely for the War Relief Fund in aid of the civilian victims in China, Malaysia and Singapore. In one of his exhibitions in
Ipoh, Malaysia, His Royal Highness the
Sultan of Perak was presented with one of his paintings. Some of his works were also donated to some temples in
Perak including the famous
Sam Poh Tong () and Nam Thean Tong () cave temples. Ong was creative in his combination of techniques of East and West from a realism and attention to detail to an expressive free style. Ong died in 1945 while tirelessly exhibiting his works in Ipoh, Malaysia. His death at the relatively young age of 45 prematurely curtailed his artistic influence and patriotic fundraising efforts. In the
Annals of
Longyan, Ong is considered one of her most famous sons. ==
Book of Chrysanthemums==