The invention discloses a suspension type greenhouse pesticide sprinkling apparatus which includes a steel wire track which is arranged inside a greenhouse. The steel wire track includes two steel wire track lines which are in parallel arrangement. The steel wire track line is connected to a walking mechanism of which a lower end is connected to a pesticide sprinkling assembly. According to the application, the pesticide sprinkling apparatus suspends the walking mechanism and the pesticide sprinkling assembly on the steel wire track so as to realize sprinkling and applying of the pesticide without taking up plantation area of the greenhouse, which is a reasonable design; the double tracks of the steel wire track lines also make the apparatus more stable; the walking mechanism can drive walking wheels so as to realize operation mechanization; the sprinkling of pesticides is realized through a pesticide sprinkling pump, which achieves automation of pesticide sprinkling and reduces labor intensity; the interconnection and coordination between a central controller module and each functional modules can achieve intelligent control of a system and realize acquisition and monitoring of environment parameter inside the greenhouse, and the design of a color sensor also help to realize optimization of pesticide sprinkling.