List type query method and node based on block chain

The embodiment of the invention discloses a list type query method and node based on a block chain, and the method comprises the steps that a first block chain node sends a query request to other block chain nodes in a block chain platform system through a broadcast mechanism, wherein the query request carries a list of which the list type needs to be queried; under the condition that the number of the lists of which the list types need to be queried is more than one, one or more other block chain nodes respond to the query request and return the list types of the query lists; and the first block chain node allocates the operation use right to the block chain nodes according to the operation use right acquisition requests of the block chain nodes responding to the query request. By adopting the embodiment of the invention, the list type of a certain specific list can be quickly queried by utilizing the block chain platform system, so that the query efficiency is improved. 本发明实施例公开了一种基于区块链的名单类型查询方法及节点，该方法包括：第一