| P | W | WLF | L | LWF | DWF | DLF | ND | Adj | Pts | |||
| 1 | Wellington | 10 | 3 | 1 | 0 | 0 | 0 | 5 | 1 | -5 | 57 | |
| 2 | Canterbury | 10 | 1 | 2 | 1 | 0 | 3 | 3 | 0 | 0 | 52 | |
| 3 | Auckland | 10 | 2 | 0 | 2 | 1 | 4 | 1 | 0 | -2 | 50 | |
| 4 | Central Districts | 10 | 2 | 0 | 3 | 2 | 2 | 1 | 0 | 0 | 48 | |
| 5 | Otago | 10 | 2 | 0 | 2 | 0 | 3 | 2 | 1 | -4 | 42 | |
| 6 | Northern Districts | 10 | 1 | 1 | 3 | 1 | 2 | 2 | 0 | 0 | 40 |
| Points Awarded and Column Key: | |
| Won (W): 16 | |
| Won but lost on 1st innings (WLF): 12 | |
| Lost (L): 0 | |
| Lost but won on 1st innings (LWF): 4 | |
| Won on 1st innings in drawn match (DWF): 4 | |
| Lost on 1st innings in drawn match (DLF): 0 | |
| No Decision on 1st innings (ND): 2 | |
| Adjustments (carried forward/fines/penalty points) (Adj) | |
| Total points (Pts) |
| Order in the table: | |
| Position of teams in the table is determined by: | |
| Total points |
| Adjustments: | |
| Auckland: 2 points deducted for slow over-rate in match against Wellington on 14th January 1990 | |
| Wellington: 1 point deducted for slow over-rate in match against Northern Districts on 27th January 1990 | |
| Otago: 4 points deducted for slow over-rate in match against Auckland on 18th February 1990 | |
| Wellington: 4 points deducted for slow over-rate in match against Canterbury on 18th February 1990 |