At the time, Macao was a military mobilization center for the United Kingdom, and according to documents, after confiscating and destroying opium in the Guangdong town of Humen, in 1839 Lin traveled to Macao for an inspection, meeting with the Portuguese commissioner at Lin Fung Temple to communicate his anti-opium position and ordering the expulsion of British opium traders.
據考證，在廣東虎門銷毀鴉片後，林則徐曾在 1839 年前往澳門巡視，並且在蓮峰廟內對當時的葡萄牙理事官傳遞堅決反煙的立場，要求下令驅逐英國鴉片販子。