Aim and Background: The number and variety of stressors that people face in elderly period have made it a necessity to pay attention to mental health, especially affective capital in this period. This study was administered with the aim of investigating the effectiveness of spirituality-based existentialism therapy and Islamic spiritual therapy on affective capital among elderly women.

Methods and Materials: The current study was a three group quasi-experimental study with pre-test, post-test and two months follow up design. The sample consisted of 36 elderly women covered by Isfahan comprehensive health care centers who were selected based on convenience sampling method and were randomly assigned into two experimental and one control group (each group 12 person). Experimental groups were treated with spirituality-based existentialism therapy and Islamic Spiritual therapy. Affective Capital Questionnaire (ACQ) was administered to three groups in three stages of research. Data were analyzed using repeated measure analysis of variance trough SPSS version 24 software.

Findings: The results of this study showed that spirituality-based existentialism therapy and Islamic spiritual therapy had significant effect on increasing affective capital.

Conclusions: Spirituality-based existentialism therapy and Islamic spiritual therapy are two appropriate therapies to increase the affective capital of elderly women. They attended to the sessions of these two treatments, found meaning and purpose in life and every event.