pallet-contracts合约模块, 一般称呼为“Contracts Pallet” 或者 “FRAME Contracts pallet”，又或者称呼为“Substrate Smart Contracts”，是parity官方研发的Wasm合约模块。
依据Substrate knowledgebase的介绍，Contracts Pallet具备如下特性：
- Are inherently safer to the network.
- Have built in economic incentives against abuse.
- Have computational overhead to support graceful failures in logic.
- Have a lower bar to entry for development.
- Enable fast pace community interaction through a playground to write new logic.