The feature in post-modern policing thought is to encounter the diverse crime after deconstruction of modern society. Now, the police cannot solve all the crime on their own; therefore, they have to look for the help from civilians. To have effective results, they should cooperate with civilians and focus on the problem-oriented strategy. With this trend of the police reformation, the community-oriented policing becomes the realistic direction in current police science, which they are requested to enter the communities, encourage civilians¡¦ involvement, and then figure out the problem-solving strategy. The police could enjoy the achievement from work and then ensure the happiness and quality of life for community residents. Breaking in from the project ¡§Six Star¡¨, this research studied the relationship between public security network and the happiness of residents. We predict the connection between the two, and hope to create the mode of community public security network and system transplantation, based on the example we implemented in Tainan County Police Bureau Guiren Police Precinct -- ¡§The process of developing neighborhood watch¡¨. The purposes are as follows: 1. Study the current community security network. With the relationship between Community watch and community development, we iron out the composition of social groups and residents interaction as the reference on studying similar organizations and development for later research. 2. Study the connection between social security network and the happiness of residents. Compare the before and after of creating neighborhood watch, and find out whether the fear to crime increased or otherwise, in order to reinforce the value and importance of this study. 3. According to the study result, we could provide relevant recommendations to implemented units and policy-planned organizations as the reference for the typical mode of developing community security network. This study adopted depth interviews (qualitative study) and questionnaire (quantitative study). In the qualitative study, we have interviews for 13 persons, including community leader (town mayor, county councilor, village chief, entrepreneur, etc.), watch captain, and police officers. With the results, we evaluate the position of the development for community watch in the community as well as the practical effect on the community security network. In the quantitative study, we focus on the residents of 4 townships in Guiren Police Precinct. We sent out 450 questionnaires and returned 372; the rate is 82.67%. The non-effective questionnaires are 14 and the effective ones are 358 which is 79.56% of the total amount. We used SPSS PC12.0 Chinese Version software to analyze the data, which include descriptive data analysis (including average, standard deviation, Analysis of Variation, and Regression Analysis), Chi-Square Test, Tabulated Statistics, and Regression Analysis. Furthermore, infer the results of each variable. The study gets the following conclusions: 1. Creating neighborhood watch could build up the warning system to secure the safety of residents. 2. Holding public security seminars through the community watch could get rid of the fear of crime of residents. 3. Developing the neighborhood watch would help the residents get involved to the community security matters. 4. The successful elements of the community watch are good leaders and stable funding. 5. Creating the neighborhood watch becomes the basic request of ¡§secured community¡¨. 6. Promoting the community public security network help improve the alienation between people. 7. After creating the community watch, the interaction between residents increased and activities as well. 8. After creating the community watch, we could build up the community security network system. 9. Government compiles the expenditure in a long term to support the community, and that is the largest expectation for residents. 10. After systematizing the operation of the community watch, the politics could also take part in the activities to create win-win situation. 11. Having security conferences periodically could respond the request of community security. 12. After creating the neighborhood watch, the quality of life in the community could get better. 13. The stronger the relationship in the community security network is, the higher the happiness of the community residents have. Although there are lots of problems in the community, we can¡¦t expect they could be solved overnight. However, ¡§the foundation of success is to get going¡¨; we hope we could at least simplify these problems. The final goal of this study is looking for the possible approaches which make people satisfied and let the government promote easily, especially in the area of community security.