The utility model discloses a pipeline gesture is magnetism shielding structure for check out test set belongs to petrochemical and natural gas line detecting system structure field. The utility model provides a pipeline gesture is magnetism shielding structure for check out test set, including cylindric shield cover and overlap joint in screening cover on the shield cover, the middle part undercut of screening cover forms the depressed part, is located the depressed part periphery the part of screening cover is the installation department, the installation department be used for with the shield cover is connected. The utility model provides an inside sensitive apparatus of pipeline gesture is magnetism shielding structure for check out test set guard screen structure can normally be worked under weak magnetic field environment, and simultaneously, the screening cover includes installation department and depressed part, and the installation department is thick load -carrying members, guarantees magnetism shielding structure's stability, and the depressed part caves in in the installation department, has alleviateed magnetism shielding structure's weight.