Imidacloprid-containing insecticidal suspension seed coating agent and preparation method thereof

The present invention relates to an imidacloprid-containing insecticidal suspension seed coating agent which comprises the following components by mass: 10 to 62% of imidacloprid, 1 to 10% of a film former, 2 to 5% of a colouring agent, 0.1% to 2% of a plant growth regulator, 5% to 15% of an emulsifying dispersing agent, 0.1% to 1.0% of a thickening thixotropic agent, and balance of deionized water. The imidacloprid-containing insecticidal suspension seed coating agent greatly improves the electrolyte-receiving resistance of a suspension system, and well solves the problem of difficult stability of the suspension system in the presence of an electrolyte.