After Bitcoin is hyped，kinds of Altcoins appears， including the well known Litecoin, Mastercoin，Primecoin，Ripple，Novacoin and other tens of altcoins. These altcoins almost own a set of complex rules，mixed with special computer games. If one is not graduated from computer major,or have a deep research on their originator Bitcoin， it is hard for them to understand so called altcoins in short time. These coins belong to the second generation of altcoins headed by bitcoins and have no central issuer and solution to solve the currency inflation and other problem. But no one promotes it since there is no central issuer and main beneficiary, so it grows up by its own charm. In this way, its price rises and drops suddenly and sharply.