(The Computer Vision-Target Detection-General Solution Framework Mask-Rcnn practical course aims to help students quickly master the current mainstream solutions and network framework construction principles in the field of target detection, and interpret their application fields and usage methods based on open source projects. Through debug method, interpret the core source code of each module in the project in detail, and understand the implementation method and modeling process of the network from the perspective of code. In order to facilitate students to apply the project to their own data and tasks, examples demonstrate how to make labels and code adjustment methods for their own data sets. The whole process of actual combat operation explains the complex network architecture in a simple way.)