This study was based on the issue that the Indonesia high school student s writing ability was still low. Therefore it was needed to find out the factors causing the problem and solution to overcome in through the implementation of the strategi modeling berbasis teks (SMBT) or text-based modelling strategy (TBMS). It would provide teachers with alternatives for teaching writing that enable students to increase their ability in writing an essay. The study used the experimental methods with The Randomaized Pratest-Postest Comparison Group Design. The data were collected in the forms of essay questionnaire interviews result document and observation result. The data collected were processed in quantitative and qualitative methods. The main source of the data were the students of SMA YAS Bandung. The result of this study proved that the SMBT could overcome the hindrance of writing and it was also effective in increasing the students competence of writing an essay. The value of significance of three groups (SPK SMD and SMBT) essay writing competence was 0.000. In the validity level of 95% the value of significance was less than 0.05 therefore the Ho was rejected. The result was also valid for significance value of the essay writing aspect s competence (substantive textual lexical syntatic and graphemic). Though they altogether increased the writing competence it was seen that the SMBT was much better and more effectictive than the SMD and SPK. The study found that the prcedure composed dand applied in the SMBT that has never done before contributed positively ti the increase of writing competence.