The characteristics and the present condition of the rural community public service request to strengthen the rural social work construction. This condition can generalize for:severe supply shortage and low supply efficiency. System innovations have to be carried on if valid and equal public service wanted to be provided for the farmer and the rural community. The core contents of this system innovation lie in building up real farmer organization,making the farmer become the corpus of the rural public service. The rural social work contributes to reach this target,from the value,the work target to the working methods,especially in the need valuation and the growth of the self-developmental ability of the rural residents about the public service.