Since 1978 in mainland China¡¦s reform and opening up, the state gradually beyond the control of the development of society. The civil society in mainland China is changing. The development of NGOs in Taiwan has rapid growth after the lifting of martial law period. Whether China could refuse or not promote the activities of the international NGOs, not only because of local NGOs massive increase but also the wave of globalization. This article compares the ways of NGOs international participations across straits. For mainland China, how to catch up with the world become more important after reform and opening up. And the Martial law ended, Taiwan how to cope with the development of globalization. This article first discusses under the global civil society, the cross-strait NGOs how to participate in international affairs, and how to exchange and cooperate with international organizations. And then observe the interactive relationship from the international participation architecture. Finally, we discuss the cross-strait development of the NGOs with constructivism. And the activity of NGOs develops from global civil society and International participation in interactive mode. Through these three architectures, we could understand the across strait NGOs attitude for international participation, and how to influence the international participation mode. In addition to use the theory to prove the cross-strait NOGs international participation mode and manner. We figure out the different ways of NGOs in Special Consultative Status with ECOSOC of the United Nations across straits, what mainland China NGOs and Taiwan initiative type and service-oriented NGOs. There are many different not only in China¡¥s international participation on unlike issues within theNGOs , but also in cross-strait NGOs international participation way and the types of activities. While Taiwan NGOs do something about international participation, subjected to mainland China. Taiwan how to use the power of the NGOs to break the siege, step on the big stage of international affairs.