Abstract: In wireless dual-channel ad hoc network, allocating the inter-cluster code resource efficiently is the key to improve the code frequency resource utilization efficiency. Taken the code spectrum resource requirement and assignment fairness for each cluster into account, a mathematical model of inter-cluster code frequency spectrum resource allocation is proposed, and converted into a constrained discrete multi-objective optimization problem. In addition, a novel discrete combinator optimization algorithm called membrane-inspired quantum cuckoo search algorithm (MQCSA) is presented based on membrane structure, quantum computation and cuckoo search algorithm(CSA). In MQCSA, quantum nest is used to represent the potential solutions, and the global optimal solution of single objective in the elementary membranes is searched with CSA, and then the optimal Pareto front solutions are calculated for obtaining multi-objective optimal solutions from the skin membrane according to inter-membrane searched information sharing and non-dominated solutions sorting. Finally, a novel code resource allocation method based on MQCSA is designed. The results show that, both the optimal solutions for single-objective and multiple-objective optimization problems can be solved, and higher efficiency on convergence performance can be obtained, which leads to the maximization of code frequency spectrum resource.