PURPOSE: To provide a cooling type infrared sensor and an infrared receiving device capable of obtaining the sufficient cooling efficiency In which the unnecessary light causing the noise components is shut off and the whole device is not enlarged.

CONSTITUTION: In the cooling type infrared sensor 11, a filter to transmit the ray of the desired wavelength region is arranged in the principal plane In which the infrared ray is incident. The infrared receiving device comprises a cold shield 13 in which the sensor is arranged opposite to an entrance window 16 of a vacuum container 15 so as to cover the sensor, and a cooling means.