A radiographic apparatus, comprising: a radiation irradiating module configured to irradiate radiation to an object; and a controller configured to automatically set a part of a region to which the radiation irradiating module is able to irradiate the radiation, to a region of interest, and further configured to determine at least one of a radiation irradiation position and a radiation irradiation zone of the radiation irradiating module based on the region of interest, the radiography apparatus further comprises a radiography module driver configured to move or rotate the radiation irradiating module; and in that the radiation irradiating module comprises an irradiation zone adjustor configured to block a part of the irradiated radiation, wherein the irradiation zone adjustor includes a plurality of blocking elements (1321, 1331, 1341, 1351) and a plurality of blocking element drivers (1322, 1323, 1324, 1325, 1326) each configured to move or rotate a corresponding blocking element independently; and wherein the controller is further configured to: send a control signal to the radiography module driver to move or rotate the radiation irradiating module according to the determined at least one of the radiation irradiation position and the radiation irradiation zone, and send a control signal to the irradiation zone adjustor to adjust at least one of the radiation irradiation position and the radiation irradiation zone, wherein one or more of the plurality of blocking element drivers (1322, 1323, 1324, 1325, 1326) move or rotate one or more of the corresponding blocking elements (1321, 1331, 1341, 1351) so as to block the part of the irradiated radiation according to the determined at least one of the radiation irradiation position and the radiation irradiation zone. a radiation irradiating module configured to irradiate radiation to an object; and a controller configured to automatically set a part of a region to which the radiation irradiating module is able to irradiate the radiation, to a region of interest, and further configured to determine at least one of a radiation irradiation position and a radiation irradiation zone of the radiation irradiating module based on the region of interest, the radiography apparatus further comprises a radiography module driver configured to move or rotate the radiation irradiating module; and in that the radiation irradiating module comprises an irradiation zone adjustor configured to block a part of the irradiated radiation, wherein the irradiation zone adjustor includes a plurality of blocking elements (1321, 1331, 1341, 1351) and a plurality of blocking element drivers (1322, 1323, 1324, 1325, 1326) each configured to move or rotate a corresponding blocking element independently; and wherein the controller is further configured to: send a control signal to the radiography module driver to move or rotate the radiation irradiating module according to the determined at least one of the radiation irradiation position and the radiation irradiation zone, and send a control signal to the irradiation zone adjustor to adjust at least one of the radiation irradiation position and the radiation irradiation zone, wherein one or more of the plurality of blocking element drivers (1322, 1323, 1324, 1325, 1326) move or rotate one or more of the corresponding blocking elements (1321, 1331, 1341, 1351) so as to block the part of the irradiated radiation according to the determined at least one of the radiation irradiation position and the radiation irradiation zone. send a control signal to the radiography module driver to move or rotate the radiation irradiating module according to the determined at least one of the radiation irradiation position and the radiation irradiation zone, and send a control signal to the irradiation zone adjustor to adjust at least one of the radiation irradiation position and the radiation irradiation zone, wherein one or more of the plurality of blocking element drivers (1322, 1323, 1324, 1325, 1326) move or rotate one or more of the corresponding blocking elements (1321, 1331, 1341, 1351) so as to block the part of the irradiated radiation according to the determined at least one of the radiation irradiation position and the radiation irradiation zone.