In order to meet the detonation control requirements of the aimable warhead during the fuze-warhead cooperation， a detonation control modeling method based on the detection and positioning of the hexagon laser fuze is presented for the dispersion rule of the prefabricated fragments of the aimable warhead. This method achieves the control of the detonation orientation of the aimable warhead by accurately recognizing the orientation of the target through the hexagon laser detection model. At the same time， in order to study the influence of different initiation methods on the performance of the warhead， the LS_DYNA finite element simulation software is used to simulate and study the fragments dispersion rule of the warhead under the different initiation methods and find the best initiation control position. Simulation results show that the directional fragment velocity gain under the eccentric 60° two lines Initiation is 9.32%， and the directional damage area is about 120°； the directional fragment velocity gains under eccentric 120° two lines， three lines and equidistant three lines initiation are 8.44%， 10.56% and 11.53%， respectively， and the directional damage area is about 60°. The established detection model can effectively cooperate with the detonation control of the aimable warhead to achieve the optimal damage effect on the target.