The major proposes of this research study were : 1) to investigate the efficiency of The Development of Social Network Learning Activities Based on Constructivist on the Title Logo Language Program writing for Mattayomsuksa III Students, 2) to compare the achievement before and after classes that used The Development of Social Network Learning Activities Based on Constructivist on the Title Logo Language Program writing for Mattayomsuksa III Students and 3) to investigate the satisfaction level of The Development of Social Network Learning Activities Based on Constructivist on the Title Logo Language Program writing for Mattayomsuksa III Students.