Traditionally, there is a predominance of qualitative research over quantitative research in academic studies in the legal field. However, the use of quantitative methods in law (statistical analysis, modeling, simulation, among others) has become an area on the rise in the legal field, seeking to understand the legal impacts in a more precise and objective way. In this sense, the main objective of this article is to discuss quantitative research in Law, in addition to addressing some empirical works carried out with legislation, jurisprudence and patents. Methodologically, this is a descriptive study, in which the inductive method was used, based on the idea that legal research tends to be mostly qualitative and that the expansion of such research in Law can enable a more comprehensive understanding. of the object of study. This work is justified insofar as it is necessary to quantitatively explore the concrete application of the law. In this sense, the dialogue between theory and data adds up, as while some studies prioritize hypothesis testing, others aim at elucidating specific observations and developing new hypotheses.