From Wiki

There are three categories of business immigrants:

[edit] Investor

Investors must demonstrate:

• business experience
• a legally obtained minimum net worth of CAN $800,000

They must make an investment of at least CAN $400,000 in Canada.

[edit] Entrepreneur

Canada wants to attract experienced people who will run businesses that contribute to the Canadian economy and create jobs for Canadian residents.

Entrepreneurs must demonstrate:

• business experience
• a minimum legally obtained net worth of CAN $300,000

They have to meet various conditions after they have arrived in Canada.

[edit] Self-employed person

Self-employed persons are required to have:

• experience that will enable them to make a significant contribution to the cultural or athletic life of Canada, or
• the experience, intention and ability to buy and run a farm in Canada