The invention belongs to the technical field of pesticides, and discloses a
glyphosate composite soluble concentrate which comprises effective components and other components, wherein the effective components comprise
glyphosate and pyridyloxyacetic acid herbicides, and the other components comprise organic amine, a cationic surfactant, water and chemically acceptable components. The pyridyloxyacetic acid herbicides comprise any one of
fluroxypyr and
triclopyr; the organic amine is
tertiary amine type organic amine with the molecular weight of 100-300; and the cationic surface
active agent is
fatty acid acylamino type Gemini. The
glyphosate composite soluble concentrate prepared by the preparation method disclosed by the invention is good in low-temperature stability, free from
icing and
caking at-16 DEG C, good in fluidity and free from
crystallization; the high-temperature stability is good, the preparation is not turbid at 70 DEG C or above, and the surfactant is not inactivated; the freeze-thaw stability is good, and the normal storage stability is good; and the preparation process is simple, inorganic base is not used in the production process, production equipment is friendly, and the cost is reduced.