The invention discloses a preparation method of a micro-
capsule suspending-suspending agent containing pyraclostrobin and
fluopyram. The preparation method includes the following steps that (1), a first solution is uniformly mixed with a second solution, and a first material is obtained; (2), a
buffer solution is added into the first material, the pH value of the
mixed solution is adjusted to be 5-7, and a second material is obtained; (3), an acidic pH
regulator is added into the second material, the pH value of the
mixed solution is adjusted to be 3-4, and a third solution is obtained; (4), the third material is subjected to solidification and condensation treatment, the pH value of a solidification and condensation product is adjusted to be 6.5-7.5, and a fourth material is obtained; (5), the
fluopyram suspending agent is added into the fourth material, and a fifth material is obtained. The prepared micro-
capsule suspending-suspending agent containing pyraclostrobin and
fluopyram has better storage stability and can prevent and treat
crop diseases in a slow-release manner in a long term, lower times for spraying of the suspending agent and reduce the dosage.