本文主要檢視體制與科技此兩個現象的共同結合，討論行動通訊網絡對中國城市外來民工間所產生的社會－空間動力，並以戶籍制度議題討論的濫觴－孫志剛事件來檢視。本文以歷史回顧及廣東地區實地田野調查的方式，從行動通訊網絡的概念來檢視此一中國城市新外來民工在都會中聯絡的新方式，以及觀察其產生的集體力量。從中可以看到制度的僵化給了新城市外來民工在自我組織上的先決條件，由於訊息移轉和地區通訊網絡的出現遠遠超過傳統規模、範圍和速度，也提供一種新的物質基礎來拓展社交通訊網絡，此過程使得移民開始敢集體出聲來顯示制度的不平等，並企望集合力量來造成社會制度改革。從孫志剛事件的民工反應可以看到，行動通訊媒體的互動性、即時性、廣泛性等特性，決定了行動通訊傳播時代的政府行政決策模式與傳統媒體時代相比產生了大幅度變化，最為突出的一點是行動通訊下的傳播模式轉變為雙向，甚至是去中心化的互動。

From the historical and field study perspective of the Sun Zhigang case, this article attempted to discuss two sets of critical phenomena – institutional and technological. We proposed the concept of networked mobility to explore how working-class migrants in urban China built their networks by information and communication technologies (ICTs). From the rising problem of hukou household registration system, we examined the role of networked mobility in working-class migrant community. We found that the spread of working-class ICTs empowered the issue of hukou-based inequality, and the mobile technology created the phenomena of two-way and decentralized participation among working-class users. The innovative device offered a new material basis for working-class migrants to strengthen interpersonal and social networks.