Aiming at the problems of increasing transmission delay and network transmission energy consumption due to topology imbalance of mechanical vibration wireless sensor network, a method of constructing a balance topology based on fuzzy analytic hierarchy process (FAHP) is proposed, which consists of fuzzy judgment matrix and calculating the weight vector. Firstly, the nodes communicate with each other to get the beacon broadcast information, to make network decision factors of beacon node unify dimension and to construct fuzzy judgment matrix by using network decision factors. Then, the consistency of fuzzy judgment matrix is checked and the weight vector is calculated by normalization or Lagrange least square method. Finally, the comprehensive weights of each beacon node are calculated by the weight vector, and the optimal beacon node is chosen as parent node to join the network. A comparative experiment is carried out based on link quality indicator to construct network topology mechanism and the experiment results indicate that the transmission delay and networks lifetime of machine vibration wireless sensor network nodes can be effectively improved by this method.