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Based on the analysis of network topology and robustness, the LMBA edge-adding optimization strategy was proposed, and three strategies of RA, LDF and SMB were adopted to optimize the network and compare the topology and robustness, respectively. It was found that there were 262 nodes and 402 edges in Ordos eco-spatial network, the network diameter was 38, the maximum betweenness was 418, and the maximum connectivity was 25, there were few important nodes which were all located in the west of the network, the network was extremely uneven, the network structure had a strong ability to recover itself when damaged, but the ability to maintain its own connectivity was very weak. After adding 94 edges, the optimized network diameter of LMBA strategy was 16, the maximum betweenness was 796, the maximum connectivity was 49, the number of important nodes was increased, and the overall efficiency of the network was improved significantly. In addition, RA and LDF strategies also greatly enhanced the network, while the network connectivity enhancement effect of SMB strategy was not significant, but the number of important nodes was increased and moved to the east, and the network structure was also more uniform than that before optimization. After being attacked, the connection robustness of the network was greatly enhanced and the recovery robustness was also improved. Compared with other strategies, the connection and recovery robustness of LMBA strategy was decreased slowly and steadily in two attack modes, which meant that the overall performance of the strategy was optimal and the network had strong connectivity and homogeneous structure, and the ability to maintain its own connectivity in the process of being attacked was optimal and stable, and the recovery of nodes and edges was also good.