A stochastic signal as a control signal was added to a neuronal network, whose deterministic behavior is rest.With the increase of the density of the stochastic signal,the spatio-temporal behavior of the network is changed from disorder to ordered spiral wave firstly and then to disorder, the spiral wave is changed from complex to simple structure,return to complex and then to simple structure,and the signal to noise ratio calculated from spatial structure function of the spatio-temporal behavior of the network reaches to maximal value twice,implying that the spatial coherence resonance is generated twice.The results not only reveal the dynamics of network under the control of the stochastic signal,but also provide the potential approach to enhance the ability of information processing of neurons through addition of control signal to induce spatial coherence resonance.