Objective To analyze the clinical characteristics of Parkinsonism patients based on hospital information system（ HIS）. Methods Information of 4

497 Parkinsonism inpatients was collected in 17 tertiary A hospitals nationwide from January 2008 to December 2010. The information on western medicine diagnosis and traditional Chinese medicine（ TCM） syndrome was normalized. The general data and TCM syndrome information was extracted for frequency statistics. Results Among 4 497 patients

2 582 were male（ 60. 90%） and 1 658（ 39. 10%） were female. The median age was 69 years old. Most patients（ 962 cases

36. 10%） aged from 46 years old to 65 years old. The median length of hospital stay was 12 days. The hospital stay of most patients（ 1 920 cases

42. 70%） was8 to 14 days. The median hospitalization expense was 10 665. 4 yuan. Most patients（ 1 235 cases

29. 29%） spent5001 to 10 000 yuan. In 43 patients with admission syndrome record

21 patients were with syndrome of up-stirring of the liver（ 48. 84%）

10 patients with syndrome of phlegm and stasis obstructing the collateral（ 23. 26%）

and the rest 12 patients with other syndromes（ 27. 91%）. In 146 patients with discharge syndrome record

29 patients were with syndrome of up-stirring of the liver（ 19. 86%）

61 patients with syndrome of yin-deficiency of liver and kidney（ 41. 78%）

14 patients with syndrome of deficiency of qi and blood（ 9. 59%）

13 patients with syndrome of phlegm and stasis obstructing the collateral（ 8. 90%）

and the rest patients were with other syndromes（ 19. 86%）. Conclusion Parkinsonism mostly strikes middle-aged and old people

and it is relatively common in male. The main TCM syndromes in Parkinsonism patients are yin-deficiency of liver and kidney and up-stirring of the liver.