In order to improve the quality of laboratories, routine use of commercial kit is recommended. This evaluation study was done to see if commercial kits presently available in Korea will suffice to use in routine laboratory. Domestic kits for cholesterol, amylase, alkaline phosphatase, BUN and albumin and imported kit (DADE) for cholesterol were evaluated. Correlation of results of kits and our laboratory results was good except amylase. The test for precision of kits showed higher coefficient of variation in cholesterol, amylase and BUN than acceptables range, but no significant differences from our laboratory results. The test of accuracy for cholesterol and amylase showed that percentages of error of kits were within the acceptable range although higher than our laboratory result in cholesterol determination. In summary the domestic chemical kits of cholesterol, alkaline phosphatase, BUN and albumin seemed to be suffice to routine laboratory tests, however kits for amylase needed further evaluation because of its high coefficient variation.