Abstract: From the analyses of the x-ray, B-scan and qastsoscopic examination prior to operation of the cardiac earcinoma in 100 cases in our hospital the author maachleve the basic evaluation for the possibility of resection of the tumors, If naged to the lesion less than 8 centimetre in length in xeray, no metatasestases obserued abdomen under B-scan, ancd less than 5 centimctre length, no obvious invasion or only surface ulcer under gastroscopic syamination, the possibilityof resection is great, on the contrary, if the condition of the parient is worse than tat described above the possibilty of resection is poor (or smaller), of course it is not absolute, just for reference.