Research in the area of health promotion usually focuses on disease prevention, and people with mental health problems are seldom included. Development of methods to assess perceived health promoting interventions and health in a broader perspective among patients in mental health services are needed. In order to properly evaluate health promoting interventions and health outcomes, the concepts of health and health promotion related to validation mesures must bee investigated. The aim was to investigate the construct validity of two newly developed questionnaires; Health Promotion Intervention Questionnaire (HPIQ), intended to measure patients’ subjective experinces of health promoting interventions and the Health Questionnaire (HQ) to measure subjectively experienced health among patients within mental health services. A cross sectional study was performed and one- hundred and forty – one participants in contact with outpatient mental health services responded to the questionnaires and to validation measures assessing psychiatric symptoms, empowerment, helping alliance and satisfaction with care, self-esteem, quality of life, and experiences of stigmatization. Health promoting interventions include alliance, empowerment, educational support and practical support and were positively correlated to alliance, client satisfaction with care and empowerment. Strong relationships were found between perceived health promotion intervention and helping alliance. Perceived health showed positive associations with self-esteem, empowerment and quality of life and negative associations with psychiatric symptoms, discrimination and rejection experiences. Self- esteem explained 60% of perceived health while psychiatric symptoms only explained about 6% of perceived health. Interventions focusing on respect, participation and empowerment are essential parts of mental health care delivery, supporting good health, including autonomy, social involvement and comprehensibility, The Health Promotion Intervention Questionnaire and the Health Questionnaire measures meaningful and valid constructs, useful in clinical mental health care and research. These questionnaires support an enhanced focus on mental health resources among patients and reinforce the perspective of health within mental health care practice and research.