The invention relates to crop-threatening animal sound-driving system structure, in particular to a wireless sensor network-based typical farm land threatening animal digital sound-driving system structure. The structure is characterized in that the system consists of a system controller, actuator nodes and pyroelectric wireless sensor nodes. The whole system has a three-layer pyramid topologicalstructure. The third layer of the structure of the system, namely a bottom layer, is a pyroelectric wireless sensor network formed by the self-organization of the pyroelectric wireless sensor nodes for detecting threatening animals; the second layer of the structure is an actuator network formed by the self-organization of the actuator nodes for giving out sound of the corresponding natural enemies of the threatening animals; and the first layer of the structure is the system controller which is responsible for monitoring the operation of the whole network. Both the actuator nodes and the system controller are powered by a 'solar-storage battery' power supply subsystem. The whole digital sound-driving system is flexible in structure, convenient to use and capable of well solving the problem of the pollution-free driving control over the typical crop-threatening animals.