The author provides the results of studying attitudes of 87 mental patients towards hospitalization and therapeutic measures of the rehabilitation department. The "rehabilitation" and "institutional" meanings of the patient's admission to the clinic have been distinguished. The personality meaning of hospitalization was found to produce an effect on the patient's attitude towards rehabilitation measures. Four extreme types of so-called "problem" patients have been distinguished. They differ in the structure of their attitudes towards therapeutic measures and personality meaning of the participation in them: patients orienting primarily towards "resocialization"; towards "self-regulation" of mental functions; "towards adaptation to the hospital way of life"; towards "justification and maintenance of the patient's status". A relationship has been demonstrated between the patient's orientation towards definite categories of therapeutic measures, possessing for the patient a specific meaning of their own, and his psychopathological and personality traits.