Objective To investigate the current situation and influencing factors of clinical decision-making ability of clinical worker in  clinic， and to provide reference for improving clinical decision-making ability of clinical worker in  clinic.  Methods In this study， a total of 300 clinical worker from the  clinic in Shaanxi province was selected as the research objects by convenient sampling method. General data questionnaire， nursing clinical decision scale and comprehensive decision style scale were used to investigate the factors affecting the clinical decision ability of clinical worker in clinic by single factor analysis and multiple linear regression.Result ⑴ The total score of clinical decision-making ability of clinical worker in clinic was （163.85±13.78） points. There is the high level of clinical decision-making ability standard （146.68~200.00）；⑵ Spearman rank correlation analysis results： Rational decision-making style was positively correlated with the total score of clinical decision-making ability and scores of all dimensions （P < 0.05）. Avoidant decision-making style was negatively correlated with the total score of clinical decision-making ability， the score of identifying goals and values， finding information or new information， and finding alternative solutions （P < 0.05）. Intuition-impulse decision-making style was negatively correlated with information seeking or new information dimension scores only （P < 0.05）.

⑶ Multiple linear regression results： rational decision-making style can positively affect the clinical decision-making ability of clinical worker in clinic， and avoidant decision-making style can negatively affect the clinical decision-making ability of clinical worker in clinic.

Conclusion The clinical decision-making ability of clinical worker in clinic was in the middle level，and was greatly affected by avoidant and rational decision-making style. Clinical managers need to hold targeted training activities to promote the formation of rational decision-making style of clinical worker in clinic， reduce the influence of avoidant decision-making style， so as to improve the clinical decision-making ability of clinical worker in clinic.

Wanxia yao has completed her PhD at the age of 48 years from Xi’an Jiaotong University  of Medicine. She works as nurse in First affiliated hospital of Xi’an Jiaotong University  as the director of Medical information management office. She works as professor  in  Xi’an Peihua  University also. She has published more than 80 papers in reputed journals and has been serving as an editorial board member of repute.She has  reviewed  more than 1000 manuscripts every year in all the world.