隨著社群網站的大量崛起，人們在網路上的行為從早期的單方面獲得資訊，慢慢轉變到與他人的網頁互動，以至於到最近的發展成社群（Community）關係。網路使用者對虛擬社群的好奇，導致了相關社群網站的蓬勃發展。近年來對於社群網路的研究日漸興盛，各個研究領域都分別以其擅長的角度嘗試切入，想了解為何社群網路如此快速的崛起、社群網路形成的各種架構或是社群網路上的大量資料呈現的資訊以及其分析等等。 社群網站滿足了人們期待與其他人產生互動、情感維繫以及得到更多資訊的需要，提供了一個虛擬空間，讓關心相同主題的使用者群聚在一起並且分享資訊。無論是想與他人互動，或是情感維繫以及渴望得到資訊，這些動機皆與人的情感表現息息相關，本研究即是採用情感的角度，來觀察社群中的特定行動者與其網路。 有關世界城市網路的研究目前並不多見，本研究嘗試以城市為社會網路中的行動者角色，研究一個由網路相片分享構築成的特殊社群網站Flickr。利用相片可忠實呈現拍攝者與被拍攝者情感的特性，以「城市」與「情感」兩大基礎來觀察此社群，嘗試構築出一個有關世界城市情感面向的網路關係。根據本研究目的，我們將建立「城市－情感共現網路」，來發掘世界主要城市之間隱含的連結與關係，或是其隱藏的情感表現。 / Along with considerable growth of social network websites, people’s actions on internet changed slowly from acquiring information to exchanging information and interacting with other people via web pages, and eventually this change has created a so-called “community relationship” on line. This blossom of relevant social network websites resulted from internet users’ curiosity about the invented virtual community. Numerous researchers in each relevant field have donated themselves into analysis and researches aiming to understand the reasons why all kinds of community websites have been created so quickly, how these communities have been structured, how the information and data underlying these websites have been presented and analyzed. The goal of this paper is to dig out links and relations between big cities worldwide and human emotions in these cities via community websites. We tried to analyze a unique community website “Flickr” that functions on the base of uploading pictures only. We categorized the pictures on Flickr on two pillar axes, “Region” and “Emotion”, as the emotions of photo shooters and personages have been detailed and recorded by these pictures. By the above categories, We drew a map of emotions in cities that will reveal a 2-mode network of emotions and cities.