There are two sub-categories to the Investor Visa category, and they are called 'Investor 1' (sometimes referred to as 'Investor Plus Visa') and 'Investor 2' (sometimes referred to as just 'Investor Visa').
You will need either minimum NZ$10 million (about US$7 million) or NZ$3 million (about US$2 million) to invest in New Zealand, depending on which one you choose to apply under. The first one has less strings attached than the other.
The usual process is to lodge an investor visa application to Immigration NZ, and if you meet the criteria, will be granted an 'approval in principle'. Once you have placed your funds into 'acceptable investments', Immigration New Zealand will grant a conditional resident visa.
Let's take a quick look at the pro's and con's of these Investor Visa categories:
Sounds like you? Read about it in more detail from here.