This paper dissusses the stability of timevariant impulse coupled neural networks. The main feature of timevariant impulse is the coexistance of unstable impulse and stable impulse in model.The stability of timevariant impulse coupled neural networks can be analyzed by controlling the intense of timevariant impulse. Several conditions for globle exponential stability of timevariant impulse coupled neural networks are obtained. Finally，an example is given to prove the effectiveness of the theory.