The present invention provides cyclohexanedione-based agricultural-chemical emulsion compositions where active ingredients of agricultural chemicals are emulsified and dispersed in spraying water, especially cyclohexanedione-based agricultural-chemical emulsion compositions where alkylphenol derivatives are not used in emulsifiers and emulsification stability and preservation stability of technical products are favorable.The cyclohexanedione-based agricultural-chemical/herbicidal emulsions where preservation stability of active ingredients of agricultural chemicals and emulsifiability are favorable are obtained by using an amine salt of alkylbenzenesulfonate with poor water solubility as an emulsifier.