The Golden Triangle area is the main source of synthetic drugs outside China. The Golden Triangle refers to a triangle located in the border areas of Thailand, Myanmar and Laos in Southeast Asia. Because this area is rich in opium and other drugs for a long time and is the main drug producing area in the world, the Golden Triangle is famous all over the world.

The Golden Triangle is located at the junction of Myanmar, Laos and Thailand in Southeast Asia. The Thai government erected a memorial arch engraved with the words "Golden Triangle" at the junction of these three countries, so this area is called the Golden Triangle. The Golden Triangle is rich in poppies, and is famous for producing opium, heroin and other drugs by local warlords and drug lords. The Golden Triangle and the Golden Crescent on the border of Afghanistan, Iran and Pakistan, and the Silver Triangle on the border of Colombia and Venezuela are also known as the three major drug sources in the world.

The golden triangle in a broad sense refers to the "three neglected areas" at the junction of Thailand, Laos and Myanmar. The narrow golden triangle refers to the delta where the Mekong River meets the Messai River. As a symbol of the Golden Triangle in Thailand, the famous Golden Triangle archway is located in Sobruak village near the ancient city of Qingsheng. It is located between Meisai Town and Qingsheng Town, 60 kilometers away from Meisai, 0 kilometers away from Qingsheng1/kloc-0, and faces Myanmar and Laos across the river.

Because it is located in a mountainous area, with unique landforms, lush forests and beautiful scenery, and because Myanmar and Laos are isolated from the world, it adds to the mystery of this place. The Golden Triangle was once famous for opium production, and 80% of the world's opium came from here. Now, the Golden Triangle has become a famous tourist attraction in northern Thailand, attracting countless tourists every year. The Golden Triangle Arch is made of marble and is 4 meters high. It is engraved in Thai and English: Golden Triangle.

There are tourist souvenir shops, jade ornaments shops and restaurants around, which sell all kinds of special goods, such as mountain ethnic costumes in Thailand, jewels and jade in Myanmar and mountain treasures in Laos. Shop assistants usually wear national costumes, showing the unique national customs in northern Thailand, and the goods are also very memorable.