The purpose of this study was to 1) to develop electronic lesson about tree twig sector of data structure and algorithms. 2).On the binary tree of data structure and algorithm, more 3) to evaluate the satisfaction of students learning the lessons with electronics. On the binary tree of data structure and algorithms.Is 1) electronic lesson about binary tree of data structure and algorithm 2) achievement test multiple-choice type 4 options. The 20 items 3).On the binary tree of data structure and algorithm, the sample is first year students 2 computer education. Nakhon Si Thammarat, number of 30 people were selected by simple random sampling.Percentage, mean, standard deviation, and so on.