The invention relates to a conveying belt, and discloses a flame retardant type conveying belt. The conveying belt comprises an upper glue layer (1), a core layer (2) and a lower glue layer (3); the upper glue layer (1) and the lower glue layer (3) are both flame retardant fireproof silicon rubber layers, the upper glue layer (1) and the core layer (2) are connected through a zipper structure (4), an inclined protruding block (11) is arranged on the upper glue layer (1), a concave hole (21) matched with the protruding block (11) is arranged on the core layer (2), the upper glue layer (1) is of a groove-shaped structure formed by the inwards-concave middle, and a spring (14) is arranged in the upper glue layer (1). The conveying belt is designed to be long, the upper glue layer and the lower glue layer are detachably connected to the core layer, the upper surface of the upper glue layer is designed to the flame retardant fireproof silicon rubber layer, the conveying belt has the good flame retardant property, the upper glue layer and the lower glue layer can be replaced, and use performance of the conveying belt can be sufficiently ensured.