This thesis investigates teaching and learning English speaking skill to the students by using Conversation Gambits at the first grade of SMKN 3 Semarang. The objectives of this study is to describe the process of English Conversation Gambits on Teaching Speaking Skill at first grade of SMKN 3 Semarang. This study uses qualitative descriptive. The data were collected by three techniques; observation, interview, and documentation. These descriptions were analyzed based on the formulas, ways and strategies of English Conversation Gambits in teaching and learning speaking skill in students education. The result of this study can be stated as follows: Teaching and Learning Speaking by Using English Conversation Gambits at the First Grade of SMKN 3 Semarang has been conduct very well. The teaching and learning speaking process did run well because the students seem understand and interactive in according to respond when the teacher start the English Conversation Gambits during the teaching and learning process in the classroom. The teacher and students were active in communicate that used Gambits formula in order to make teaching and learning process in the classroom become more natural and smooth. Gambits give many benefits for students, for example students can increase their additional vocabulary and new expression from English Conversation Gambits Strategy. The another advantage is the students can speak the conversation fluently because the teacher always correct the students’ mispronunciation directly. It’s good for teacher to teach English speaking skill to students more creatively and variously by using some English Conversation Gambits that can be implemented.