Abstract: Two benchmarks were established. One is moderation shell containing hydrogen which is 34 cm in diameter. The other is composed of the shell and polyethylene cylinder of 24 cm×30 cm which are combinatorial. Measurement of neutron energy spectrum above 1 MeV changing with different positions of the experimental assemblies were carried out for incident neutrons from outside using d-T fusion source of accelerator. Meanwhile, the spectra were transformed integral spectrum. The scintillation detector of stilbene crystal of 18 mm×20 mm was used to measure neutron spectrum. At 0.95 level of confidence, the uncertainty of the measurement is 4.8%.