This research was conducted on the basis of researcher’s observation that every student and teachers had facilities for using e-learning system, but they couldn’t use it effectively. The aims of this research were 1) to explain the extend to which the product development needed to teach writing of descriptive text; 2) to explain how the media potentially developed through moodle e-learning media to teach descriptive text writing; 3) to explain the effectiveness of moodle e-learning media to teach descriptive text writing. The subject of this research was students at tenth grade of SMK NU Ma’arif 01 Semarang. The research involved 47 students. 22 students were in the control class and 25 students were in the experimental class. The data were collected through pre-test and post-test. The result of this research described as follow: 1) the extent needed of developing moodle e-learning media is as follow: a) the students’ need analysis mentioned in the rate 96%, that students agreed toward Moodle e-learning media because it was very helpful. b) the total of validation result from expert validation 1 and 2 was 79.1% which indicates valid enough to be implemented in English learning process with little revision 2) The researcher developed moodle e-learning media was done by using seven steps research based design adapted by Borg and Gall, with the following procedures: need analysis, planning, developing preliminary moodle e-learning media, preliminary field testing of moodle e-learning media, moodle e-learning revision, main field testing of moodle e-learning media, revision of product. 3) the effectiveness of product supported by the results of students posttest that obtained 76.04. Based on those findings, this moodle is valid to be implemented in English learning process.