To aim at the identification of a certain type of flight control laws,an improvement is made on the method of continuous-time identification that is presented on the articles［2,3］.A general model of the identification target is given,which is suitable for this kind of method.And also,by improving the guideline of error model and minimum criterion,the original approach is extended to time-variable area. Numeric simulation results show that this method successfully solves the identification problems of flight control system.And,the method can be easily spread to some parameter identification that is linear,nonlinear,time-variable,or noontime-variable.