Background　Generally， patients should be examinated routinely before operation， but the value of operation risk assessment and the effect of spending is rarely reported， and the current doctor-patient relationship more aggravated the medical behavior to be blindness and non scientific nature. Therefore， thinking of he perspective of evidence-based medicine， seeking the clinical evidence seems to be the best solution to the problem.　Objective　This paper analysis and elaborate the correlation with anesthesia operation risk or outcome and the conventional inspection items before operation， and to investigate the relationship between the risk benefit and cost.　Content　The detection rate of occult disease by examined the three routine， electrocardiogram， blood biochemistry and organ function， and how these routine inspections affect on the anesthesia assessment and decision making.　Trend　Whether routinely medical behavior can bring real medical security， based on the tension doctor-patient relationship and ignored the waste of social resources， increase the cost for patients without corresponding benefit， are worthy of all of the official， the general anesthesia， and the operation doctors thinking critically.