The invention provides a method for manufacturing an environment-friendly household building material board by using yellow top chrysanthemum straws and birch shavings, and relates to the field of household building materials; the method comprises the following steps: (1) treating yellow top chrysanthemum straws with sodium hydroxide solution, taking out, draining, soaking in water vapor of 180-200 DEG C in acetic acid solution, pressurizing to 5-8 MPa, keeping the temperature and the pressure for 3 minutes, and then carrying out pressure relief blasting to obtain the yellow top chrysanthemumpowder body; (2) soaking the birch shavings in hydrogen peroxide solution at room temperature, and treating the birch shavings with steam at 160-180 DEG C for 5-20min to obtain birch fiber; (3) preparing an adhesive; (4) adding the yellow top chrysanthemum powder body and the birch fiber into a proper amount of deionized water to prepare paste, adding the paste into a mould, prepressing for 10-15sunder 1.5MPa to obtain prepressing plates, uniformly coating a layer of the adhesive between the two prepressing plates, prepressing for 10-20s under 2-5MPa, uniformly raising the temperature and pressurizing to 150-160 DEG C within 100s, 10-15MPa hot pressing for 200-250s, cooling to obtain a plate blank, finishing, curing and cutting to obtain a finished product. The method has the advantages of excellent performance, is green and environmentally friendly, and can be widely used in the market.