The utility model provides a container and head metal insulating layer anti -seismic testing spare, it is main includes four curved heat insulating blocks, four heat insulating blocks form one ten / half spherical surface structure body through concatenation about from top to bottom, wherein together fixed with the hasp respectively on the concatenation limit of two liang of heat insulating blocks, and install on other sides of four heat insulating blocks and to be connected the hasp with experimental support fixed connection uses, the heat insulating block outside be the casing of making by the corrosion resistant plate material, the inside packing has stainless steel reflective foil piece, is equipped with for to form structure support's supporting component with experimental support at the casing internal surface, four heat insulating blocks all be formed with 18 jiaos arcwall face to be provided with the ladder platform that matches scarf joint structure respectively splicing the terminal surface from top to bottom, and link into an integrated entity the back and form the testpieces of ten / half spherical surface structure body, make anti -seismic testing be close to true operating mode, it has simple structure, installation convenient to use, and simulation is strong, can carry out characteristics such as effective anti -seismic testing.