Wong Chong Mun was born in 1871 in the village of Cheng Gong. He was an only child.
Chong Mun wanted to become a doctor but his father Wong Hoy Fun rejected this idea because he believed that bad luck would strike if a patient passed away. All the same, Chong Mun became well educated, obtaining the equivalent of a Ph.D., financing his schooling with money his father sent home to China from the US where he was a sojourner. Hoy Fun encouraged Chong Mun to become a government official and live off graft, as was the custom of the time. Accordingly, Chong Mun went to Beijing to take the imperial examination to qualify for a government position, but he did not do well on the test. Village school superintendent was the job he subsequently found instead.