Phala aims to become a privacy protection infrastructure for Web3.0. It is developed based on Substrate and implements confidential smart contracts through the TEE blockchain architecture, which can provide privacy computing services for the Polkadot ecosystem. Phala is Polkadot's privacy computing infrastructure. PhalaNetwork is a privacy computing parachain on Polkadot. Based on a POW-like economic incentive model, Phala releases numerous private computing power in the CPU and applies it to the Polkadot parachain, and then serves other applications such as Defi and data services on Polkadot. Phala-based applications pLibra and Web3Analytics have been granted by the web3 foundation.