|Abstract: ||2008 年馬英九政府執政後，兩岸交流無論是經濟或是文化上開始互動，不僅是常態性的互動，在次數上亦較以往頻繁，但回想過去，兩岸之間在政治、軍事或外交上仍存在爾虞我詐、互挖牆角之敵對狀況，除此之外，中國大陸近年來在經濟發展上日益茁壯，2010年中國大陸國內生產毛額（簡稱GDP）為39兆7938億人民幣，已超過2009年34兆903億人民幣，亦超越日本，躍居世界第二大經濟體，僅次於美國，但也存在貧富差距日益擴大之問題。|
After President Ma was in power in 2008, Cross-strait exchanges start to interact not only in economic but also in cultural aspect, and the number of the times of the interactions are more frequent than ever. But in the past, two sides in the politics, military or diplomacy are still in a hostile situation. Moreover, China’s economic development has increasingly grown in recent years. Mainland China’s gross domestic product (GDP) was 39 trillion and 793.8 billion yuan in 2010, more than 34 trillion and 90.3 billion yuan in 2009. China has overtaken Japan to become the world''s second-largest economy behind the United States. And the problem of the gap between the rich and the poor in China was growing rapidly.
Mainland people coming to Taiwan engage in work or activities with the unapproved purposes, or China even assign disguised staff to enter Taiwan to do infiltration, and intelligence gathering event, and never stopped. Each stage of the government policy process, the illegal immigration of mainland people always take advantage of it. So called “Three phases of the illegal immigration of mainland people”, first step: Illegal Immigration, second step: Fake Marriage and third step: Escaping from the travel group and never back. With the opening of the new policy of government, there will have new illegal immigration ways. Since government put a trial policy of the opening of Mainland people coming to Taiwan since January 1, 2002, the object of the initial open only for "The Third Category." Because the effect is ineffectual, the Ministry of Interior revises the policy on "Regulations Governing the Permission for Mainland Personnel to Come to Taiwan for Tourism Activities" on May 10, 2002, which adopted “The Second Category.” The number of mainland people coming to Taiwan are 12,768 in 2003 up to 98,548 in 2006. Now, in order to revitalize domestic economy, the government fully open up mainland tourist coming to Taiwan since July, 2008 and the numbers are thousands time than before. However, whether the government do prepare appropriately on human input and security management system.
The current factor which affecting the national security, there are three aspects of international environment, cross-strait relations and domestic situation. In addition to the traditional threat of force, many non-traditional threats, including fake marriages-real prostitution, overstayed tourist, human trafficking, smuggling, cross-strait organizational, political asylum, those issues made a great impact on national security and public security. Hence, before the support measures be ready, the process of opening up should not be rush. In the meanwhile, strengthening the security management system of the authorities, such as the capacity of investigation before arrival, the contact after entry, provisioning work and the investigation energy of the security organizations. The point of this study is to maintain cross-strait peace and national development on the basis of the fine cross-strait relations.