The utility model discloses an unimolecule shredded tobacco for water pipes stalk preprocessing device and processing system, offal preprocessing device is including washing stalk machine or soak the stalk machine, install and washing the stalk machine or soaking the inlet tube of stalk machine and the unimolecule water treatment ware on the circulating pipe. The offal pretreatment systems include unimolecule shredded tobacco for water pipes stalk preprocessing device, water storage device and pump, the import of pump pass through the connecting tube to be connected with water storage device, the delivery side of pump and the unimolecule shredded tobacco for water pipes obstructs preprocessing device's the water piping connection that advances. Permanent strong magnetism fresh water (FW) list molecularization treater does not consume the energy, and the strong activity and the permeability of unimolecule water can make offal better returning thoroughly very fast, single molecularization's water need not carry out humid tropical to the offal to be handled, and the consumption of offal pretreatment procedure to energy resources has significantly reduced to greatly reduced the time of return passing through of offal, this device simple structure, easy to operate has reduced workman's intensity of labour.