The utility model provides a waste water treatment and recovery system includes: a waste water water installations, processing apparatus and recovery unit, waste water water installations communicates processing apparatus's water inlet and channels into processing apparatus with waste water, recovery unit intercommunication processing apparatus's delivery port, recovery unit include water quality testing mechanism, water purification intake the mechanism, store mechanism and electrical control mechanism, waste water is handled through processing apparatus and is formed the recycle -water after processing apparatus's delivery port flows, water quality testing mechanism is used for detecting the quality of water of recycle -water, therefore, it is used for storing the recycle -water that accords with predetermined cleanliness to store the mechanism. By this, the utility model discloses retrieve after handling waste water in storing the mechanism, and the cleanliness of recycle -water reaches the standard of predetermined cleanliness, make it can regard as process water next time.