The invention relates to an energy saving type primary crushing apparatus, which comprises a vibration sieve, a permanent magnet cylinder, a crushing device, a cyclone separator, an air closing device, a powder enzyme cylinder, an auger conveyor, a stirring tank, a powder slurry pump, an evaporator, a hot water tank, a fan and other components, and is characterized in that the vibration sieve is connected with the permanent magnet cylinder, the permanent magnet cylinder is connected with the crushing device, the crushing device is connected with the cyclone separator, the cyclone separator is communicated with the stirring tank through the air closing device and the auger conveyor, the stirring tank is further provided with the powder enzyme cylinder, and is connected with the powder slurry pump, and a steam circulation system is further arranged, comprises the evaporator, the hot water tank and the fan, and is provided for providing steam and hot water for the part of the equipment. The energy saving type crushing apparatus has advantages of energy saving, consumption reduction, good crushing quality, high cooking efficiency and the like.