This article investigates the clinical characteristics and predictive factors for achieving recompensation in patients with decompensated liver cirrhosis associated with autoimmune hepatitis (AIH). The study included 211 patients, of whom 61 achieved recompensation, and their baseline indicators and prognostic relationships were analyzed. The results showed that the recompensation group had significantly higher levels of ALT, AST, TBil, MELD score, Child-Pugh score, and SMA positivity rate than the persistent decompensation group, suggesting that more severe initial liver injury and obvious liver cell inflammation activity may actually predict a better treatment response. Multivariate Cox regression analysis found that baseline ALT elevation, SMA positivity, lower IgG levels, and hormone therapy were independent predictive factors for recompensation (P<0.05), with the HR for hormone therapy reaching 20.651, highlighting its key role. The study systematically reveals the predictive value of SMA positivity and IgG levels in recompensation and constructs a nomogram model (C-index=0.87), providing a quantitative prediction tool for clinical use. The innovation lies in: one, challenging traditional cognition and finding that patients with high MELD/Child-Pugh scores may still achieve recompensation; two, clearly identifying SMA positivity as an independent favorable prognostic factor; three, establishing an integrated recompensation prediction model with clinical, biochemical, and immunological indicators, which has important clinical guiding significance.