Abstract-Many countries hope to make use of the diaspora resource to develop their home-country's economy and social conditions. Ireland is the country which has successful strategies of diaspora practices. It formulated a series of policies to mobilize nearly 80 million diasporas to contribute to the home country, which finally made the glory era of "Celtic Tiger". This paper is to analyze Irish successful experience to understand the relationship between the Irish diaspora and economy development, which would help us to make our Chinese diaspora strategies well. We believe that the successful of Irish foreign capital inflows, the establishment of pillar industry, the building of professional and technical network, the promotion of tourism industry and the peace process in Northern Ireland were contributed to the Ireland's government's great diaspora strategies, which attracted a large number of diasporas to return to Ireland. Irish diaspora strategies play an important role in Irish foreign-oriented economic construction.