Water bath or spray sterilization biological indicator as well as use method and application thereof

The invention provides a water bath or spray sterilization biological indicator as well as a use method and application thereof. The biological indicator has the characteristic of separation, the recovery culture solution and the sterilization biological indicator exist independently, and compared with the prior art, the biological indicator does not need to be transported and stored at low temperature to inhibit the activity of the sterilization biological indicator. And the plastic tube is crushed before being used, so that the sterilization biological indicator and the recovery culture solution in the plastic tube are sterilized through heat conduction, and the plastic tube is stable, reliable and long in shelf life. Meanwhile, the plastic pipe is sealed by adopting a sealing material, so that the recovery culture solution cannot leak due to high temperature and high pressure in the sterilization process, and the indicator has the advantages of stable resistance, high temperature resistance and high pressu