Results: Among 617 hospitalized patients with decompensated cirrhosis, the percentage of patients with AKI by AKIN criteria was 19.1%, among them the percentage of stage 1 AKI was 44.1%, stage 2 wwas 28.0%, and stage 3 was 28, 0%; the 30-day mortality rate was 14, 2% in the group without AKI and 45.8% in the AKI group, in which 30-day mortality of of stage 1 AKI was 15, 4%, stage 2 was 75, 6%, and stage 3 was 81.8%.