Portable external field calibration device

The portable external field calibration device is characterized in that a spectrum calibration lamp group and a radiation calibration lamp are both mounted on a shell of an integrating sphere, and the spectrum calibration lamp group consists of LED monochromatic light sources or lasers with different characteristic spectrums and is used for realizing spectrum calibration; the radiation calibration lamp is a continuous spectrum light source and is used for realizing radiation calibration; diffuse reflection light generated by the spectrum calibration lamp group or the radiation calibration lamp is incident to an entrance pupil of a load to be calibrated through the integrating sphere flange, so that spectrum calibration or radiation calibration is realized; the controller is respectively connected with the spectrum calibration lamp group and the radiation calibration lamp, and is used for controlling the on and off of the spectrum calibration lamp group and the radiation calibration lamp; the integrating spher