The test on treating urban sewage in Handan has been continuing for a long-term by using the composite constructed wetland system,and the purification effect were discussed in autumn and winter.The results show that the removal rates of COD,TN,TP,SS are 65%,84%,80%,91%,in winter drop off to 25%,27%,65%,89%in autumn.The purification effect and stability of system have been raised during the serial secondary sub-series.