Target detection network updating method and device and electronic equipment

The embodiment of the invention provides a target detection network updating method and device and electronic equipment, and the method comprises the steps: obtaining a visible light image sample, a thermal imaging image sample, a fusion image sample, a visible light detection model, a thermal imaging detection model, and a to-be-updated target detection network, target detection is carried out on the visible light image sample, the thermal imaging image sample and the fused image sample to obtain a first target set, a second target set and a third target set, and the target is obtained based on the overlapping relation of the identification frames corresponding to the targets in the first target set, the second target set and the third target set and the category of each target. The sample target is determined, the model parameters of the to-be-updated target detection network are adjusted based on the fused image sample corresponding to the sample target and the corresponding pseudo label, the pseudo label