Background: Psoriasis is a skin condition that typically affects the knees, elbows, trunk, and scalp. It has a seasonal component that peaks in winter and early spring and decreases in late summer. A prevalent component of psoriasis is psychological discomfort, which has a detrimental impact on life and the severity of the condition. This study aimed to assess the effect of psychiatric nursing intervention on climate change worry. Research design: A quasiexperimental (pre/post-test) research design was used. Setting: The study was carried out at outpatient dermatology clinics at Assiut University hospital, Egypt.Sample: A purposive sample of 100 patients, their ages ranged from (18- 65) years diagnosed only with psoriasis and not having other skin diseases. Study tools: Including personal and clinical data sheet and climate change worry scale. Results: At pre- test, 70% of the experimental groups have high level of worry about climate change. While post-test 68% of experimental group have low level of worry about climate change. Conclusions: Implementing Psychiatric Nursing intervention improved coping strategies to climate change worry among studied patients. Recommendations: Integrating Psychiatric Nursing intervention into the treatment plans for patients with psoriasis and providing patients with educational materials and counseling sessions.