首先，本文初步探索了国际和国内原油期货市场的基本现状，引入了套期保值和

Firstly, the international preliminary exploration and the basic status of the domestic crude oil futures market, the introduction of basis risk hedging and discussion from both concepts and theories, and using the method set forth in detail metric basis risk.

First of all, this paper explores the basic situation of international and domestic crude oil futures market, introduces the concept and theory of hedging and base risk to discuss, and uses the method to elaborate the measurement of base difference risk.

First of all, this paper explores the basic situation of international and domestic crude oil futures market, introduces the concept and theory of hedging and basis risk, and uses methods to elaborate the measurement of basis risk.