Mechatronics is an interdisciplinary field of engineering sciences characterized by the integration and interconnection between mechanical engineering, electrical engineering, and computer science. Mechatronic products are mostly structurally complex, but they are an optimal solution for many fields of industry such as medicine, agriculture, agribusiness, among others. The main objective of this article is to identify research trends on NPD (New Product Development) mechatronics projects today. For this, a bibliographic review is made, citing important works in the area since 2001, addressing the main objective of each research, in order to group them into approaches and identify current research trends. In the end, it is concluded that the trend is to reduce the total cost of a mechatronic product, as well as to begin to adapt concepts of the new technologies of Industry 4.0 (I4.0) to the NPD mechatronic projects. The goal is to facilitate the collaboration, in a more formal way than social communication and, consequently, simplifies knowledge reuse.