Brain glioma is the most common primary tumor of the central nervous system in adults. Due to the invasive growth which is the main biological feature of the tumor, it is difficult to identify the exact boundary of the tumor during surgery. Accurate identification of brain glioma boundaries is helpful to maximize the safe resection of the tumor, facilitate the delineation of the target area of postoperative radiotherapy, reduce recurrence rate, and improve the quality of life of patients with postoperative survival. At present, the determination of tumor boundary mainly depends on the combination of preoperative imaging and intraoperative multimodal neuron avigation. In recent years, various invasive and noninvasive imaging technologies have made some progress in the direction of glioma boundary recognition. Different imaging technologies can provide multifaceted tumor information, such as tissue anatomy, functional metabolism and so on, which is conducive to more accurate delineation of the edge of the lesion. In this paper, the role of various imaging techniques in glioma boundary techniques are taken as review.