The study explained the influence of the contextual learning model and critical thinking competence in enhancing argumentative writing proficiency. The sample is 50 students taken by using a multistage sampling technique. The study results indicated that the contextual learning model group has more significant influence than the non-contextual learning model group. There was an interaction between the learning model and critical thinking competence. There was a significant argumentative writing skill difference between the contextual learning model group and the non-contextual learning model group with high critical thinking competence. The argumentative writing skill and contextual learning model were the same as the argumentative writing skill and non-contextual learning model group of low critical thinking ability. This means that critical thinking competence and contextual learning models have a significant influence on argumentative writing proficiency.