Emerging technologies are now initiating new industries and transforming old ones with tremendous power.They are different games compared with established technologies with distinctive characteristics of knowledge management in knowledge-based and technological-innovation-based competition.How to obtain knowledge advantage and enhance competences by knowledge sharing for emerging-technology-based strategic alliances(ETBSA) is what we concern in this paper.On the basis of our previous work on emerging technologies’ distinctive attributes,we counter the wide spread presumption that the primary purpose of strategic alliances is knowledge acquiring by means of learning.We offers new insight into the knowledge sharing approaches of ETBSAs——-the knowledge integrating approach by which each member firm integrates its partner’s complementary knowledge base into the products and services and maintains its own knowledge specialization at the same time.So that ETBSAs should plan and practice their knowledge sharing strategies from the angle of knowledge integrating rather than knowledge acquiring.A four-dimensional framework is developed to analyze the advantages and disadvantages of these two knowledge sharing approaches.Some cases in electronic industry are introduced to illustrate our point of view. Emerging technologies are now initiating new industries and transforming old ones with tremendous power. They are different games competed with established technologies with distinctive characteristics of knowledge management in knowledge-based and technological-innovation-based competition. How to obtain knowledge advantage and enhance competences by knowledge sharing for emerging-technology-based strategic alliances (ETBSA) is what we concern in this paper. On the basis of our previous work on emerging technologies’ distinctive attributes, we counter the wide spread presumption that the primary purpose of strategic alliances is knowledge acquiring by means of learning.We offers new insight into the knowledge sharing approaches of the same time .So that ETBSAs should plan and pract ice their knowledge sharing strategies from the angle of knowledge integrating rather than knowledge acquiring. A four-dimensional framework is developed to analyze the advantages and disadvantages of these two knowledge sharing approaches .ome cases in electronic industry are introduced to illustrate our point of view.