Pauline Hanson's One Nation has emerged as the Turnbull government's most reliable voting partner in the Senate, defying early predictions that the upper house in this term of Parliament would be even less manageable than before.

An analysis of Senate voting patterns by Fairfax Media shows Ms Hanson – who regularly attacks both major parties for being out of touch with voters – sided with the government on 74 per cent of votes from August to December last year. There were 183 votes over this period.

By contrast, Derryn Hinch voted with the government 61 per cent of the time, Liberal Democrat senator David Leyonhjelm 60 per cent and the Nick Xenophon Team (NXT) 54 per cent.

On issues where the Coalition and Labor were divided, One Nation voted with the government 85 per cent of the time, compared with 77 per cent for Senator Leyonhjelm and 66 per cent for the NXT senators.