Preparation method of electrochemical biosensing electrode layer and application of electrochemical biosensing electrode layer in preparation of sensing test paper

The invention provides a preparation method of an electrochemical biosensing electrode layer and application of the electrochemical biosensing electrode layer in preparation of sensing test paper, and the method comprises the following steps: printing at a preset first electrode position on a substrate by using first conductive ink to form a first electrode; printing at a preset second electrode position on the substrate by using second conductive ink to form a second electrode; third conductive ink is used for printing at the position of a preset parameter identification electrode on the substrate to form the parameter identification electrode; printing on a preset electrical element position on a wire connected with the parameter identification electrode by using preset mixed ink to form an electrical element; and performing soaking treatment by using an aqueous solution containing a surfactant and/or sodium chloride to obtain the electrochemical biosensing electrode layer. The parameter identification elem