The centre-to-limb variations of the sun in the vacuum ultraviolet region were observed by a scanning spectrometer mounted in the K-10-11 rocket flown from Uchinoura, Japan, on September 24, 1975, 1400 JST. The nose cone of the rocket was controlled to point the direction of the sun by a jet system (CN) within about 20. The spatial and spectral resolutions of the spectrometer were 50" and 3.3 Å respectively. The observed results were consistent with our privious one (1630Å~1740Å) and those obtained by the French group (1740Å~2000Å), but differ from the HSRA model (about 1700Å~2000Å).