Using S-rough sets,the concepts of knowledge law,f-disturbance law and -disturbance law are given to provide further the existence theorem and the relation theorem of the above laws.

The changing of knowledge law is caused by the attribute disturbance of knowledge,and the knowledge law of attribute disturbance has chain characteristics.

Following the regular pattern of understanding knowledge to impart;

The practice and effect of pre-internship training of legal knowledge for nursing students;

Practice of legal knowledge training in course of clinical teaching;

Objective To investigate the mastery of legal knowledge among nurses in 25 local hospitals 2.

Investigation of law knowledge among otorhinolaryngological outpatients;

Via the investigation and analysis of controlling law knowledge by the medical workers, the medical workers may enhance their law and security awareness, improve their own diathesis, esteem patients right and prevent from dissension between the doctors and patients.

From project management specialized raise goal as well as Western country civil engineering specialized administrative personnel s investigation data, we can find the importance and difficulty to study the law knowledge and raise the law consciousness.