对人盲肠未分化腺癌细胞系ＨＣｅ－８６９３）第２３代（早代）及１２５代（晚代）进行细胞遗传学研究，结果发现其染色体的数量分布比较集中，呈近二倍体核型，早代与晚代差别不大，染色体众数为４９。Ｇ显带核型分析结果表明，本细胞系比较接近于正常二倍体核型，异常染色体较少而有规律，易于进行核型分析。较明显的改变是第１号染色体短臂远端缺失及第１３号染色体三体性或部分三体性。 The cytogenetics of human cecal undifferentiated adenocarcinoma cell line (HCe-8693) at passage 23 (early generation) and passage 125 (late passage) were studied. The results showed that the number of chromosomes was highly concentrated and nearly diploid karyotype. There is no significant difference between the early generation and the late generation, with a chromosome number of 49. G-banding karyotype analysis results show that the cell line is close to the normal diploid karyotype, abnormal chromosome is less and regular, easy to carry out karyotype analysis. The more obvious changes are the distal deletion of the short arm of chromosome 1 and the trisomy or partial trisomy of chromosome 13.