Method for preparing bionic collagen aqueous solution and use method thereof

A method for preparing a bionic collagen aqueous solution, wherein, comprising the following steps in order:

• (1) placing solid animal-derived type I collagen in water, then adding an acidic solution while stirring to dissolve the solid animal-derived type I collagen to form a homogeneous aqueous solution, the resulting collagen aqueous solution has a concentration of greater than 0.1 wt. % of and less than or equal to 10 wt. %;
• (2) adding the collagen aqueous solution obtained from step (1) into simulated body fluid components slowly while stirring at a temperature greater than or equal to 0° C. but less than or equal to 5° C. for fully dissolution;
• (3) adjusting the collagen aqueous solution obtained from step (2) with an alkaline solution or an acidic solution at a temperature greater than or equal to 0° C. but less than or equal to 5° C. to a pH value of greater than or equal to 6 and less than or equal to 8, to form a homogeneous solution;
• (4) adding a connecting molecule solution into the collagen aqueous solution obtained from step (3) and stirring uniformly at a temperature greater than or equal to 0° C. but less than or equal to 5° C. to complete the preparation, after then storing the bionic collagen aqueous solution at a temperature greater than or equal to 0° C. but less than or equal to 5° C.