Attitude stabilized technology is very us ef ul to reduce the dispersion of long-range rocket, but the range dispersion of a ttitude stabilized rocket is not very satisfactory still.

With numerical simulation, reasons of technical dispersion for long-range rockets resulting from various factors of disturbance are analyzed.

The paper analyses the characteristic of long range rocket projectile and the classification of the target,describes the basic elements of task allocation,sets up the mathematics matching model of long range rocket projectile and its attacking target and analyses the model with genetic algorithm.

Performances and fault characteristic of long range rocket projectile weapon systems in various circumstance is analyzed.

In order to study the ballistic characteristics of long-range shells and rockets at high altitude,the expression of drag coefficients of long-range rocket in rarefied gas was deduced based on rarefied gas dynamics.

In order to study the ballistic characteristic of long-range shells and rockets at high altitude,the expression of drag coefficients of long balance range rocket in rarefied gas was deduced based on rarefied gas dynamics,and the calculating and analysis about aerodynamic characteristic along with March number and angle of attack were made.

After the attitude being stabilized, restraining the range dispersion of long-range rocket becomes the more important problem.

Aiming at the problem that long-range rocket\'s testing range is different from the calculating range,a new viewpoint was advanced that there are differences between pitching and yaw of equatorial damp moment when the attacking angle is big.