The cooperative passive guidance by two stations is a brand-new anti-radiation guidance system, characterized by high concealment and strong anti-jamming capability.To cooperative passive target locating problem in the terminal guidance phase of this application, a passive location model of Time Difference of Arrival (TDOA) direction finding nearby very-long baseline was constructed.The change rule of ranging accuracy with the direction angle between the object and station is thoroughly analyzed with this model, as well as the location accuracy that can be achieved in various attack directions.With this result, the optimal condition for missile attack position in the passive terminal guidance phase was analyzed, increasing the accuracy of passive location.Finally, validity of the theoretical analysis was verified through simulation, thus providing a new reference for such applications as cooperative passive guidance by two stations and anti-radiation precision attack.