The introductive live show interlock device has no automatic intelligent control function of reference threshold, which needs great amount of man work to adjust the threshold locally. This paper developed an introductive HV live show interlock equipment with automatic intelligence control function, which uses remote control to switch the introductive value to reference threshold without the trouble of removing manhole cover. Another prominent characteristic of this equipment is its ability of intelligence adjusting of reference value, which can output a adjusted reference threshold value by detecting the introductive value automatically. It has been proved in practical uses that this equipment can be applied in electrical equipment of transformer substitution,and its operation is convenient and easy to be generalized.