Objective To investigate the differences of multiple factors in acute cerebral infarction (ACI) patients with and without multiple organ dysfunction syndrome (MODS),as well as in ACI patients in different MODS score groups.Methods One hundred and fifty-seven ACI patients were divided into non-MODS group( without concurrent MODS group)and MODS group.The MODS group patients were further divided into four subgroups according to the scores,including 1 -6points,7 - 12 points,13 - 18 points and points over 19.All patients were measured for procalcitonin(PCT) and C-reactive protein(CRP).The National Institutes of Health stroke score( NHISS score),acute physiology and chronic health evaluation( APACHE Ⅱ score)and Watian water test score were calculated.The differences in age,gender,PCT,CRP,NHISS score,APACHE Ⅱ score,Watian water score,breathing support rate,eating rate and mortality rate between the two groups were compared.Results Non-MODS group,compared with the MODS group,was significantly younger( [72.11 ± 16.41 ] years vs.[ 77.88 ±17.67 ] years,t=2.451,P ＜ 0.05 ),and the difference in the ratio of male to female between groups was not significant (57/38 vs.34/28,x2 =0.414,P ＞ 0.05 ).Differed from MODS group,non-MODS group had significant lower PCT value ( 1.83 ± 0.51 vs.2.98 ± 0.71,P ＜ 0.01 ),CRP value ( [ 12.53 ± 7.12] mg/L vs.[69.89 ±43.83 ] mg/L,P ＜0.01 ),NHISS score(9.38 ±5.24 vs.21.35 ±7.47,P ＜0.01 ),APACHE Ⅱ score ( 11.63 ± 4.22 vs.30.92 ± 7.80,P ＜ 0.01 ),Watian water score ( 2.36 ± 0.98 vs.3.88 ± 1.09,P ＜ 0.01 ),breathing support rate ( 2.1％ vs.43.5％,P ＜ 0.01 ) and mortality rate ( 4.2％ vs.43.5％,P ＜ 0.01 ),but had remarkable higher eating rate(95.8％ vs.66.1％,P ＜0.01 ).Pairwised comparison among the four MODS score groups,the PCT,CRP,NHISS score,APACHE score,Watian water test,breathing support rate and mortality rate were significantly different(P ＜ 0.05) ;The differences in age between the 1 -6 points group and the other three groups was significant ( P ＜ 0.05 ).Conclusion Age,PCT,CRP,NHISS score,APACHE score,Watian water test score,breathing support rate,mortality rate of the high-score MODS groups were higher than those of MODS groups with low-score in ACI patients,while eating rate was lower than that of the low-score groups.