If Grifola frondosa is not properly managed before fruiting, it will often encounter the following situations, which need special attention and take corresponding remedial measures. (1) The surface of the covered soil is infected by miscellaneous bacteria, mainly Pseudomonas aeruginosa, Mucor and Rhizopus, which are caused by poor ventilation, untimely shading or excessive impurities in the covered soil. The source of miscellaneous bacteria should be found and removed in time. (2) Brown fungus skin is formed on the surface of the fungus bag, and the fungus blocks are not well connected. The reason is that it is cultivated too early and flooded too early in the morning, which makes the fungus block stay in a low temperature state for a long time and is stimulated by cold water. In the early stage of cultivation, due to the low temperature and less water loss, it is necessary to reduce the number of flooding, or reduce the shade thickness, and strengthen the heat preservation at night to make the temperature in the border reach the temperature required for mycelium germination. (3) The fungus block lost water and its surface was infected by miscellaneous bacteria, which was mainly caused by low soil water content, no soaking in water during cultivation and dry soil around the fungus block. Before cultivation, the border should be watered, and after cultivation, the soil should be fully wetted with water, and it is not allowed to dry.