The invention discloses a packing box for hydroscopic warm cloud catalyst powder, which comprises four box side plates, a box bottom plate and a box cover, wherein two box side plates are fixedly connected with the box bottom plate; a packing tape bunches the four box side plates to form a hollow structure; the box cover covers the hollow structure formed by the four box side plates; a box opening rope is arranged on the box bottom plate and the box cover in parallel; a box bunching rope bunches the packing box in the direction perpendicular to the box bottom plate; and the strength of the box bunching rope is smaller than that of the box opening rope. The invention also discloses a method utilizing the packing box to pack the hydroscopic warm cloud catalyst, a method for winding the pulling rope of the packing box and a sowing method utilizing the packing box. When the packing box is utilized to sow, the packing box can complete sowing of large doses of the hydroscopic warm cloud catalyst powder within a short time.