Spherical puff snack production line is a new type of extrusion technology for extruding popcorn. The expansion technology is an effective combination application of temperature and hot air circulation, with high thermal efficiency, low production cost, environmental protection and no noise; Extruded sugar coating is produced by assembly line, with high degree of automation, simple operation and stable quality; Spherical puff snack production line can achieve the ideal effect of "shell bursting and peeling", with high spherical forming rate, uniform sugar coating, easy adjustment of formula, and arbitrary adjustment of original flavor, caramel, strawberry, coconut paste, dark chocolate, etc.