The invention discloses a variable pitch feeding conveying mechanism, which comprises a rack, a chain wheel group, a plurality of conveying rods and a regulation device, wherein the chain wheel group and the regulation device are arranged in the rack respectively; the conveying rods are arranged on the chain wheel group, are driven by the chain wheel group to cyclically move, and are in contact with the regulation device. The variable pitch feeding conveying mechanism is easy to operate, and can work reliably, material, labor and time cost are reduced, and production efficiency can be improved.