The paper means to repropose Therapeutic Community importance and adequacy as treatment process and therapeutic Method. An intensive treatment process to those people who have clinical and existential situations of a certain seriousness and complexity, wich can not find a result so articulated in other treatment contexts and methods. We describe the characteristic of treatment model and therapeutic community professional operative organisation so that this very specialistic offer does not lose its own Identity, risking to devaluate both clinic and treatment Subjects. Assessment, clinical decision, treatment guidelines and clinical Research, when they are based on the experience of a therapeutic Model highly professional actually tested during the time as for Therapeutic Community one, define an institutional identity today dangerously questioned by paradigms always less scientific and clinical. The essay highlights the clinical quality of work done by the therapeutic community when the institutions don’t allow own identity alienation and self-hybrid transformation with significant consequences on the results.