隨著資訊與通訊科技的進步，網際網路服務應用已成為日常生活中不可或缺的一環，人們社群交流也透過各種通訊設備與網路技術，自然而然形成更緊密的社群網路 (Social Networks)；加上無線通訊設備的發展，更產生出透過無線通訊設備連結彼此的行動社群網路。本論文所探討的社群網路是由天使心家族基金會之遲緩兒家長、志工以及專職人員所組成，根據深入訪談天使心家族基金會社群的結果，遲緩兒家長所需求服務類型眾多；故如何幫助家長與天使心家族基金會從志工們中，找出一位最適當的志工給予家長服務，這點是本論文的重心。 本論文將提出一個媒合遲緩兒家長與志工的系統，遲緩兒家長可在系統中提出服務需求，而志工於系統中提出可服務的時段與項目，本系統將會針對家長與志工提出的項目媒合遲緩兒家長與志工；但是會有多位志工都滿足該位遲緩兒家長的需求的情況，為了考慮系統自動媒合，本論文提出利用媒合適配度挑選出較適當的志工給予家長服務。在計算媒合適配度的過程中，本論文將考慮家長與志工的服務滿意度調查問卷、志工的專業技能以及遲緩兒家長與志工之間的地理位置距離，利用此三個因素達到選出一位較適合的志工給予家長服務。 為了調查媒合適配度的效果，本論文收集兩次天使心家族基金會例行性講座活動中家長與志工的服務滿意度調查問卷，並於第二次活動中利用媒合適配度將家長與志工媒合。第二次問卷與第一次問卷的比較後，在第二次的13對成功媒合的配對中，有53.846%的家長與志工對於「整體滿意度」的評分有提升，以及42.3%的家長與志工對於「服務評價」的評分有提升的趨勢，可看出本論文提出的媒合適配度計算，有達到挑選一位較適合服務家長的志工，使家長與志工能滿意服務的過程。 As the evolving of Internet technologies, its application has gradually affected human life. It naturally becomes a social network in community or among communities, who used communication technologies and devices to communicate with each other. And wireless mobile communication devices exuberantly develop, so mobile social networks were formed by people who communicated through mobile devices. The referred mobile social network is composed of parents with Developmental Delay Children (DDC), volunteers and staff in Angel Heart Family Social Welfare Foundation. Service types, which parents with DDC needed, had many kinds by results of depth interview. About this paper, it is a point how to assist parents finding an appropriate volunteer to serve this parent. This paper proposed a system to matching parents with DDC and volunteers. In this system, parents requested a service and volunteers provided service which he could serve. This system will match parents and volunteers by those service items. For selecting a more appropriate volunteer, this paper proposed matching fitness to select volunteers. In matching fitness, this paper considered service questionnaires from parents and volunteers, professional skills of volunteers and distance between parent and volunteer. In order to investigate effect of matching fitness, twice questionnaire surveys were executed in routine activity of Angel Heart Family Social Welfare Foundation. And parents with DDC and volunteers were matched by matching fitness in second activity. Compare second activity with first activity, and then 53.864% “Overall Satisfaction” and 42.3% “Service Feedback” of questionnaires in second activity are higher than questionnaires in first activity regarding 13 pairs were matched in second activity. By investigation report, matching fitness could select a more appropriate volunteer and make parents with DDC and volunteers satisfying the service.