The limitation of the meteorological temperature verification system is that the degree of automation cannot meet the need of increasing workload. Aiming to realise temperature verification without personnel deployment, this paper proposes a meteorological temperature verification system based on the robot arm. To implement the workflow of the parallel control strategy, the system framework integrates device, networking, communication, and data storage levels. The vital issue of system building is shielding the interference from power grounding, electromagnetic field changing, and device communication. An optimisation method is proposed for interference shielding, and multiple tests are carried out for comparison. The results show that the indicating value of the precision thermometer can be restored to a steady state of dynamic balance, which improves the intelligence of the system and the precision of metrological verification.