Psoriasis may significantly impact on patients' health related quality of life (HRQoL). Clinical assessment has been combined with HRQoL scores to evaluate the ways that cutaneous disease is a burden to patients. Tildrakizumab is a humanized IgG1 monoclonal antibody targeting interleukin-23 p19 and is approved for the management of moderate-to-severe plaque psoriasis. The aim of our study was to evaluate the impact of tildrakizumab treatment on psychological field in patients affected by moderate-to-severe plaque psoriasis. a 36-weeks observational study was carried out enrolling psoriasis patients who initiated treatment with tildrakizumab 100 mg. DLQI and Skindex-16 questionnaire were administered at baseline, week 12, week 24 and week 36. PASI, BSA and pruritus (p)-VAS were also assessed at baseline and at each follow-up. A total of 34 patients were enrolled. Baseline PASI and BSA score were 28.4±5.6 and 38.8±21.4, respectively. Similarly, the impact of psoriasis on HRQoL was collected (DLQI: 26.4±3.2, Skindex-16: 68±5.8, p-VAS: 8.2). Clinical improvement was assessed since week 12 (PASI: 12.4±4.2; BSA: 16.5±7.3), continuing to week 24 (PASI: 4.2±2.8; BSA: 6.1±3.1) and 36 (PASI: 3.6±3.2; BSA: 4.2±1.37). Clinical improvement was accompanied by an improvement in quality of life at week 16 (DLQI: 15.5±2.9; Skindex-16: 28.2±4.2; p-VAS: 3.8) , 24 (DLQI: 8.2±1.4, Skindex-16: 16.2; p-VAS: 2.6) and 36 (DLQI: 3.1±2.4; Skindex-16: 9.3±2.8; p-VAS: 2.8). Our study also confirmed the safety of tildrakizumab in real life settings, with no treatment discontinuation for inefficacy or adverse events reported during the study. our results confirm tildrakizumab as an effective option for the improvement of psoriasis patients' HRQoL.