The aims of this research was to find out: (1) the correlation between students‟ error recognition test and their writing ability of the fourth semester students of English Department at The University of Muhammadiyah Purwokerto. This research employed correlational research design and the participants were 38 students or two clasess of the population (129). The technique which was used to determine the participants was random sampling technique by using lottery. The data was obtained from test namely Error Recognition Test and writing test where the students should write descriptive text which have minimal 250 words. The analysis showed that the result of the product moment correlation computation between error recognition test and writing ability in creating descriptive text was 0,67. It was higher than the value of r-table which was 0,32 in the level of significance 5%. This meant that there was a strong correlation between students‟ error recognition and their writing ability. By the result of the computation, it could be concluded that there is correlation between error recognition test and EFL learners‟ writing ability. So, the hypothesis stated that there is correlation between EFL students‟ performance on error recognition tests and their writing ability was accepted. It means that error recognition can be a predictor of EFL learners‟ writing ability.