And consideration of the thermal barrier effect and productivity in the present invention, stainless insulating windows structure, the heat insulating connecting member 200 to be applied to windows and doors member of two heat-insulating member of the first species is wind-proof member recess 202 to the main body upper center is extruded and adjacent the rectangular windbreak member groove bottom space part 208 is provided, the wind guard member groove bottom space part 208, the left and right by the second slit 204 is provided formed of a second slit friction protrusion (204a) on each of the outer wall and, the second slit 204 and the right and left in contact with the second rectangular slit is disposed lateral space 209, in contact with an amount of room and the second slit side space 209 to the outside, 'And a pair of glass groove bottom space part 206 of the mold is provided integrally with said of pair glass groove bottom space 206 both outer chamber bottom with the formed first slits friction protrusion (203a) of the two on the outer wall the first slit 203 are formed respectively, the first slit 203 of the outer wall to; The side wall is a pair of rectangular glass grooves 201 and the pair of glass groove 201 has a side wall yangnae Moya hair groove (203b) is configured integrally with the longitudinal section having a coupling wall 207 ' 'Shape of the second bending frame (100b) by the second insulating frame windows (100B) assembly into and; In longitudinal section the 'C' shaped steel form the first bending frame (100a) with two heat-insulating connecting members (200) symmetrical with the first insulating windows frame (100A) to an intermediate heat insulating windows frame 100 to be directly used which is assembled by characterized in that the service.