The invention discloses a water-soluble
solid insecticide and a preparation method thereof, the insecticide is a water-
soluble tablet or granule, and the insecticide comprises the following components in percentage by
mass: 30-80% of
thiocyclam, 0-30% of an insecticide B, 0.1-2% of a pH
regulator, 0.1-0.5% of an attractant, 1-20% of a surfactant and the balance of filler. The preparation method comprises the steps of material mixing,
airflow crushing, water adding and kneading, forming,
drying, screening and packaging. The insecticide disclosed by the invention adopts a water-
soluble tablet or granule and is free from
precipitation after being dissolved in water, so that the environmental
pollution in the production and use processes is reduced, the
shelf life of the product is prolonged, and the lasting period for preventing and treating harmful insects of crops can be prolonged.