Premix agent for prolonging laying summit of laying hen and application method

The invention discloses a premix agent for prolonging laying summit of laying hen and an application method, wherein the premix agent comprises the following compositions: 1-3% of multi-vitamin for laying hens, 3-5% of garlicin, 1-2% of probiotics, 0.4-1.0% of 10% organic chromium, 1.8-3.0% of isoflavones, 3.5-5% of methionine, and 81-89.3% of zeolite powder, and the premix agent is obtained by mixing the compositions above evenly. By using the premix agent provided by the invention, it only takes 27-28 weeks for the laying hens to get to a laying summit, which is one week earlier than that in normal situation, a laying rate of over 90% can be maintained for more than 8 months and then slowly reduces and the amplitude for reducing is much slower than that in the normal situation; the economic benefit is quite obvious.