Speaking skill is different from writing skill. Writing is a formal skill, soas a writer he or she must be consistently follow the formal procedures.It is different from the speaking skill which doesn‘t so strict inaccommodating the formal rules. The Writing of script at Speaking 2lecture is the focus of this study because the scripts are presented afterthey prepare for having conversation. Through writing the speakingscript the students learn carefully of khow to deliver a conversationpurposefully and use the language features correctly even in oralcommunication. Moreover, in speaking they are able to convey theirfeeling, emotion and thought. The purposes of this study are to know thekind of grammatical errors made by the students of the EnglishDepartment in writing their speaking scripts and the sources of studentsin making error in writing the speaking scripts. The researcher takes thesubjects of students of the second semester of the English DepartmentSTAIN Salatiga in academic year of 2012/2013 as they took Speaking 2subject. And to collect the data the researcher used test anddocumentation. The result of this study explains that the writer analyzedthe errors made by the students included the use of grammatical rules,vocabulary choice by implementing error analysis. In addition, the errors are analyzed such as the use of preposition, subject pronoun, objectpronoun, verbs and nouns, irregular verbs, tenses, pronouns andpossessive case, word choice, writing questions, and conditionalsentence.Keywords: error analysis ; Speaking skills ; writing and script