Abstract: Abstract cases of acute ileus caused by colon cancer were included in the report. A new way of enter-decompression was employed, which had the advantage of complete pressure-relifing and caused no contamination. In order to achieve a successful resecution and anastomosis at a time,and prevent anastomosis mouth fistula, it was improtant of maintaining a good mesentery arterialpulsation at end of anastomosis enteric, and place it at a hypotonic state; it was also advisable toindwell a tube during opration for drainage post-opration, and exeute post-oprative anal digital dilation at the set time intermittently.