Disclosed are a tumour location tracking method and a radiotherapy equipment (100), relating to the technical field of medical apparatuses and instruments and solving the technical problem of the low accuracy and reliability of the existing tumour location tracking. The tumour location tracking method is applied to the radiotherapy equipment (100). The radiotherapy equipment (100) comprises at least one radioactive ray source (10) and a first detector (20), comprising: the radioactive ray source (10) emitting a radioactive ray beam of a predetermined intensity, and the radioactive ray beam passing through a lesion of the body and then being partially scattered (S101) the first detector (20) receiving the scattered part of the radioactive ray beam so as to acquire scattering data of the lesion (S102) determining the relative location relationship between the lesion and a target region according to the acquired scattering data and according to the determined relative location relationship, adjusting at least one of the intensity of a radioactive ray beam of the next cycle, the location of the lesion and the location of the target region so that the lesion receives the irradiation, from the radioactive ray beam, of the predetermined intensity in the target region in the next cycle (S104).La présente invention concerne un procédé de suivi de localisation tumorale et un équipement de radiothérapie (100), concernant le domaine technique des appareils et des instruments médicaux et résolvant le problème technique de la précision et la fiabilité faibles de la poursuite de localisation de tumeur existante. Le procédé de suivi de localisation tumorale est appliqué à léquipement de radiothérapie (100). Léquipement de radiothérapie (100) comprend au moins une source de rayonnement radioactif (10) et un premier détecteur (20), comprenant : la source de rayonnement radioactif (10) émettant un faisceau de rayonnement radioactif dune intensité prédéterminée, et le faisceau de rayon
