Melon seeds shelling line is one advanced automatic shelling equipment for pumpkin seeds and watermelon seeds. Both pumpkin seeds and watermelon seeds are cracked and separated from hulls at one time and unshelled pumpkin seeds can be cracked again, saving time and labor. Wet type pumpkin seed shelling machine processes soaked pumpkin seeds, while negative-pressure separator separates pumpkin kernels from shells without blowing air which can reduce the dust content in processing procedure.