The invention relates to the technical field of air covering yarns, in particular to an elastic slub hemp brocade air covering yarn. Making the chinlon POY yarns and spandex yarns into spandex coated yarns on an elasticizer; taking the prepared spandex coated yarn as a core, taking the other prepared chinlon POY yarn as a skin, and preparing the elastic slub hemp chinlon air coated yarn on an air coating all-in-one machine. The chinlon elastic slub hemp air coated yarn researched and developed by the scheme fills the blank of chinlon hemp in the field; the coated yarn is high in strength, resistant to wear and good in hygroscopicity, not only shows excellent performance of bast fiber fabric, but also overcomes the defects that bast fiber is not high in strength and not resistant to wear, and more economic benefits can be created through brand new products.