The invention discloses a method and apparatus of improving block generation speed. The method of improving block generation speed includes the steps: when a block stores data, storing the transaction information in a database and storing Hash values in the block; establishing an index relation between the Hash values and the transaction information in the database; and when verifying the real existence of the transaction, according to the index relation, downloading the transaction information to be verified to perform verification. The method and apparatus of improving block generation speed can reduce the transaction information determining events and improve the block generation speed so as to achieve the aim of improving the transaction efficiency of a block chain network.