The utility model discloses a cottonseed separator with mill, including the vertical mill of placing, the center department of mill is equipped with transmission shaft B, motor A passes through drive belt A drive transmission shaft B and rotates, transportation silo A's discharge end passes through baffle box D and is connected with the mill, the discharge end of mill passes through the feeding end connection of baffle box A and lifting machine, motor B passes through drive belt B and drives the transmission shaft A rotation on the lifting machine, the discharge end of lifting machine passes through baffle box C and transportation silo D's feeding end connection, transportation silo D's below is equipped with transportation silo C, transportation silo C discharge end passes through baffle box B and transportation silo B's feeding end connection. The problem of the cotton benevolence that exists among the current cottonseed separator draw insufficiently and the boll hull can not recycle after being peeled off is solved.