The method of small parameter and setting up model of dumbbells are used to calculate the gravitational radiation of Double Satellite,and the expression of quadrupole radiation power is obtained.The calculated results is coincident with the astronomical observed results.At the same time,the method of calculation is simpler and easier than the others.The high-order gravotational radiation(higher than the octapole radiation) can be discussed with the method of small parameter,so a new method and a way is supplied for the theory calculation of the high-order gravetational radiation.