This research was aimed to find out the types of error found in the students’ writing invitation cards made by the eight grade students at SMP negeri 1 Sukodono. This research was conducted by using descriptive qualitative method. The subjects of this study were the 8th grade students at SMP Negeri I Sukodono. The instruments of this research were the researcher, documentation and table. The result showed that there were four types of errors found in the students writings based on the Surface Strategy Taxonomy called: (1) omission consisting 5 times (16.67%), (2) addition consisting 11 times (36.67%), (3) misformation consisting 13 times (43.33%) and (4) misordering consisting 1 time (3.33%). Meanwhile, the types of error based on the Generic Structure containing: 25 students have no errors in the types of the Generic Structure of “the invite”. There were 9 students who made errors “the body” or “the inviter” through the invitation cards they made. Lastly, there were 16 students who have no errors in the Generic Structure. However, the researcher addresses recommendations to 1) English teachers should be aware on grammatical errors in writing, 2) students to explore their writing proficiency to reduce errors, 3) other researchers to explore the implementation of error analysis