What are the requirements for skilled immigrants in Canada?

Canadian skilled immigrants (current policy):

1, federal fast track EE: you need to be around 30 years old, graduate from undergraduate course, have no professional restrictions, have worked for 5 years, have 4 IELTS 6 or above (some need 4 7), have no criminal record, and have completed academic certification.

2. Canada nominates immigrants: on the list of occupations required by this province (usually IT doctors, machinery, biology, automation, electronic appliances, etc. ), working for more than 5 years, IELTS requires 4 points or more.

3, Quebec immigrants: French B2, English IELTS 5 points is enough, the occupation is on the training list, undergraduate graduates, spouses and children can get extra points.