There are three major types of party system.
1. Single Party System: a system in which a single political party has the right to form the government. Single party existed in China, North Korea and Cuba.
2. Bi – Party System: In Bi -Party system the power is usually shared between two parties. Of the two parties one becomes the ruling party and the other becomes opposition, eg Bi-Party system can be seen in U.K, U.S.A
3. Multi – Party System: When the competition for power is among three or more parties, the system is known as multi party system. This type of party system is in existence in India, France, Sweden and Norway etc