Objective:To analzye the related factor and nursing countermeasure for urinary retention after percutaneous coronary intervention. Methods:Choosed patients to divide into study group and controlled group to treat with nursing intervention and common nursing. Compared the first voiding time and postvoid residual urine after 12h, and related factor urinary retention. Results:The first voiding time and postvoid residual urine after 12h of study group were less than controlled group, the rate of urinary retention and catheterization in study group were lowere. And related factor of urinary retention were not adapting voiding way, psychological factors, age factor, amount of water after operation. Conclusion: Clearing related factors of urinary retention after percutaneous coronary intervention could improve our nursing and decrease incidence of urinary retention to extend in clinic.