Spacecraft in orbit will encounter space radiation environments such as electron, proton, heavy ions, gamma ray, etc; and results in the space radiation effects such as single event effects, total ionizing dose effects, displacement damage effects, surface charging and discharging or electrostatic discharging, internal charging effects. So protection from space radiation should be given to the spacecraft. The protection principle and validity from space environments on spacecraft is introduced firstly, and then mass shielding material, ESD protection material, and radiation hardening functional material, were discussed. At last, some development directions on protection material from space radiation environments are proposed.