The invention discloses a method for measuring the density of a pesticide suspending agent product. The method can be used for fast and accurately measuring the volume of a certain mass of products through removing air bubbles in a suspending agent in a centrifugal mode so as to measure the density of the product. The method is easy to implement; and with the adoption of the method, the problem that the density of a liquid having high viscosity and containing air bubbles is difficult to measure is solved effectively.