1.0 Poly HRP DAB Kit for Mouse+Rabbit). Subsequently, the images were captured. A single-blind, positioning, qualitative and semi-quantitative scoring criterion was used for describing the positive stains by the experienced pathologist. Absorbance corrected values, measured area values and positive integral absorbance were detected by the digital pathology quantitative measurement in the same areas from the two groups. Then, the mean absorbance was calculated. Results The stains of all the samples from the two groups showed accurate location and consistent qualitative evaluation. No significant differences were found between the two groups in all the semi-quantitative scoring, including stain intensity, positive stain percentages and mean absorbance. Conclusion The two commercial secondary antibodies have strong consistency in the immunohistochemical staining.