Abstract: In this paper, in order to terminated polyoxyethylene chain of non-ionic poly(amideamine) dendrimers thermal stability, and retention in the paper and the catalyst carrier applications. The results showed that: the dendrimers have good thermal stability, 300 ℃ had previously been almost no significant thermal decomposition behavior, the largest thermal decomposition temperature occurred in the vicinity of 400 ℃. Retention performance test showed that M4.0G (fourth generation) Retention System retention rate 88.9%, compared with a blank pattern of retention rates increased 13.5%. Paper samples of physical mechanical properties of tear index, tear strength, bursting index, tensile strength and breaking resistance index was higher than the blank pattern were increased 8.6%, 1.5%, 35.5%, 29.6% and 4.3%. TEM tests show that the PEO-terminated groups poly(amidoamine) dendrimers samples of palladium metal nanoparticles embedded monodispersed better particle size distribution range of 0.75~2.4nm .