Objective To observe the effect of ciprofol and propofol in painless gastroenteroscopy in elderly patients．Methods A total of 80 elderly patients aged 65 or above who underwent painless gastroenteroscopy were randomly divided into a group of 40 patients receiving ciprofol（Group C）and a group of 40 patients receiving propofol（Group P）．All patients were given sufentanil 0.08 μg/kg,and group C was given ciprofol 0.3 mg/kg,group P was given propofol 1.5 mg/kg after 30 seconds．The heart rate（HR）and mean arterial pressure（MAP）of two groups of patients before anesthesia（T₀）,at the disappearance of eyelash reflex（T₁）,after gastroscopy insertion（T₂）,and at the end of the procedure（T₃）were recorded．The operating time,anesthesia awakening time,number of additional medications and the adverse reactions such as injection pain,respiratory depression,cough,body movements were also recorded．Results There were no significant differences（P>0.05）in the gastroenteroscopy operating time,recovery time and number of additional medications between the two groups．Compared with T₀ time point（102.6±14.1 mmHg）,the MAP of group P patients significantly decreased at T₁（86.0±12.5 mmHg）,T₂（86.1±13.2 mmHg）and T₃（92.8±12.6 mmHg）time points（P<0.05）．Compared with Group C at T₁（95.9±10.8 mmHg）,T₂（96.3±9.6 mmHg）time points,the MAP of Group P decreased significantly at T₁（86.0±12.5 mmHg）and T₂（86.1±13.2 mmHg）time points（P<0.05）．The incidences of injection pain and respiratory depression in group C were significantly lower than those in group P（P<0.05）．There was no statistically significant difference in the incidences of body movements and cough between the two groups（P>0.05）．Conclusions Ciprofol 0.3 mg/kg combined with sufentanil can provide anesthesia effect similar to that of propofol 1.5 mg/kg combined with sufentanil in gastroenteroscopy of elderly patients．The proportions of injection pain,blood pressure decreasing and respiratory depression in elderly patients in the ciprofol group were lower．