The invention relates to a combined electric and magnetic shielding structure for an ultra-high voltage shunt reactor body. The structure comprises a coil and is characterized in that the structure comprises a high field strength area electric shield and a ground potential area electric and magnetic shield, wherein the high field strength area electric shield is fixed on the end portion of the coil side, the ground potential area electric and magnetic shield is placed on a clamping piece side, and a middle insulating partition part is arranged between the high field strength area electric shield and the ground potential area electric and magnetic shield; the high field strength area electric shield is of an overall structure or is a high field strength area electric shield group composed of multiple high field strength area electric shield separated structures. According to the combined electric and magnetic shielding structure for the ultra-high voltage shunt reactor body, the problem of excessive distance caused by traditional design methods can be solved; through the method of combining the high field strength area electric shield group with the ground potential area electric and magnetic shield group, the problems are solved that because of sharp corners of traditional ground potential area structures, uneven electric field distribution is caused and magnetic flux leakage of end portions is difficult to control, and the requirements for insulation and safety are ensured.