The invention belongs to the technical field of cultivation of edible fungi, and particularly relates to an
agaricus bisporus culture material with the effect of preventing diseases and
insect pests.A preparing method of the culture material comprises the following steps of S1, taking pomelo peel, and then conducting extraction to prepare a pomelo peel extract; S2, taking
houttuynia cordata, andthen conducting extraction to prepare a
houttuynia cordata extract; S3, mixing corncobs,
bagasse and ryegrass, supplementing the mixing process with
microwave radiation treatment, then conducting pressure maintaining treatment under a low pressure condition, then increasing the pressure to a
high pressure condition for pressure maintaining treatment, and then conducting degradation treatment to obtain a degradation product; S3, mixing and stirring the degradation product, the pomelo peel extract and the
houttuynia cordata extract, and supplementing the stirring process with
magnetization treatment. The culture medium is rich in
nutrition, contains various vitamins, amino acids and components for preventing the diseases and
insect pests as well as magnetic adsorption components, can eradicate the diseases and
insect pests, and can convert dead bodies of the insect pests into nutrients to lower the
contamination rate.