Controllable cracking template preparation method

The invention discloses a preparation method of an adjustable cracking template. The preparation method comprises the following steps: adding egg yolk liquid into egg white liquid to prepare cracking liquid; and after cleaning and hydrophilic treatment are carried out on the transparent substrate, the cracking liquid is coated on the treated transparent substrate in a scraping manner and is heated and dried to form the cracking template. According to the method, the width of the cracking block is regulated and controlled by regulating and controlling the cracking liquid (the egg white liquid and the egg yolk liquid), and the cracking template smaller than the cracking block prepared from the egg white liquid in the prior art is obtained. And moreover, the size of the width of the cracking block can be further controlled by regulating and controlling the amount of the added yolk liquid, so that the performance of the transparent conductive electrode manufactured by using the cracking template is further improv