ecause of the pressing environmental problems and fierce market competition, the transformation aiming at collaborative creation of economic value and ecologic value becomes crucial strategy which supports the sustainable development of small and medium-sized manufacturing enterprises. Cooperation network with learning effect, complementary effect and economic effect is the strategic support for transformation of small and medium-sized manufacturing enterprises. From two dimensions of network structure performance and network ability performance, this paper constructs the network performance evaluation index system which includes network scope performance, the degrees of node contributions and relationship contributions, and network timeliness, accuracy and stability. The paper also evaluates the performance of economic and ecological cooperation networks by Grey Analytic Hierarchy Process(G-AHP), divides the cooperation network of small and medium-sized manufacturing enterprises into four types, namely, cooperation poverty, economic cooperation deficiency, ecological cooperation deficiency and balanced development, and then puts forward specific reconstruction strategies for the cooperation network of small and medium-sized manufacturing enterprises.