Half-senate elections were held in Australia on 21 November 1970.
| Party | Votes | % | Swing | Seats Won | Seats Held | |
| Australian Labor Party | 2,376,215 | 42.22 | -2.81 | 14 | 26 | |
| Liberal/Country (Joint Ticket) | 1,098,134 | 19.51 | -14.31 | 4 | * | |
| Liberal Party of Australia | 991,473 | 17.61 | +9.47 | 8 | 21 | |
| Democratic Labor Party | 625,142 | 11.11 | +1.34 | 3 | 5 | |
| Australia Party | 163,343 | 2.90 | * | 0 | 0 | |
| Country Party | 59,416 | 1.06 | +0.24 | 1 | 5 | |
| Independents | 95,902 | 1.70 | +0.71 | 2 | 3 | |
| Other | 219,208 | 3.89 | 0 | 0 | ||
| Total | 5,628,833 | 32 | 60 |
Independents: Reginald Turnbull (Tasmania), Michael Townley (Tasmania, Liberal Party from Feb 1975), Sydney Negus (Western Australia)[1]
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