Natural rubber tree belongs to tropical rain forest tree species, and its planting area is basically distributed within 65438 05℃ in north and south latitudes, mainly concentrated in Southeast Asia, accounting for about 90% of the world's natural rubber planting area. The main producing countries are Thailand, Indonesia, Malaysia, China, India, Viet Nam, Myanmar and Sri Lanka. In particular, the first three countries account for more than 60% of the world's output, and most of the natural rubber produced is exported, of which Thailand and Indonesia account for more than 90% of the output.