Patient-initiated brief admission (PIBA) is an innovative psychiatric care intervention that gives patients the autonomy to initiate a short admission (approximately 1-3 days) to psychiatric inpatient care. This intervention is structured around a mutual agreement between the patient and their care provider that outlines the specific structure and content of their care. Unlike regular psychiatric admissions, healthcare professionals do not review the patient's decision for admission during PIBA. Similar interventions have been developed globally to reduce the need for long inpatient admissions and compulsory care by enhancing patient autonomy, promoting active participation in care, and empowering patients to recognise early signs of mental health deterioration. The objective of this systematic review was to explore the experiences of PIBA among individuals with mental health disorders. A systematic review was conducted using qualitative articles sourced from the PubMed, CINAHL, and PsycINFO databases. A total of thirteen original articles were included in the review, encompassing 186 patients. Research demonstrates that PIBA significantly impacts patients' care experiences in various ways. Access to PIBA gives patients the opportunity to take a break from daily stressors, which has proven significant in interrupting the cycle of worsening symptoms and negative thoughts. Furthermore, when the care environment is characterised by trust and respect, patients experience an increased sense of freedom, which contributes to a more effective recovery process. PIBA provides patients with a sense of safety and offers the possibility of a more functional daily life. Healthcare professionals'attitude and care provision also significantly influences patients' experiences. Central to a positive patient experience are a warm reception, attentiveness, and active listening. PIBA can not only change patients' perceptions of healthcare but, more importantly, fosters a transformative view of themselves as active participants in their own well-being. Knowledgeable healthcare professionals are crucial for the successful implementation of this intervention. By offering dignity and warmth alongside safety, PIBA addresses a critical gap in patient mental health care.