Network politics has the potential of large-scale public deliberation between the government and the public, and the key of public deliberation is the construction of the rule system. In order to construct and explain the rule system adapted to the network political platform, based on the research framework from the perspective of public deliberation, this paper extracted the rule elements of network politics from four typical network political platforms using Textual Analysis. These elements can be used to construct the institutional rules to promote public participation, the organizational rules to facilitate orderly interaction and rules of dialogue dedicated to consensus-building. These rule elements run through the organization, process and technology of network politics. Therefore, in order to realize the function of different links of public deliberation, promote the further development of network politics, and reach the full potential of public deliberation, it is necessary to carry out the system planning and process designing of management mechanism under the guidance of rules of conversation.