To provide a temperature measuring and sampling device measurable even in the state where an electric furnace body is longitudinally tilted.

In a temperature measuring and sampling device 6 formed of a frame 7 provided on a platform 2 having a furnace body 1 placed thereon, a truck 13 traveling along a traveling frame 12 connected to the frame 7, a lance 11 fixed to the truck 13, and a holder 10 fixed to the tip of the lance 11, temperature measurement and sampling can be performed while the furnace body 1 is longitudinally tilted. Therefore, the degree of freedom in operation in temperature raising period is ensured, and the milling time of the electric furnace can be made shorter than a conventional one by several minutes. Thus, improvement in productivity and reduction in operation cost can be realized.