1.访问idea官网地址：
https://www.jetbrains.com/idea/，点击download
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230650483-596614932.png)

2.选择根据操作系统选好版本后点击【download】
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230655684-602598448.png)

点击【next】
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230659580-1990089650.png)

选择安装路径
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230728252-802085086.png)

根据操作系统位数选择安装的位数，例如64位操作系统勾选64-bit-launcher
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230719292-2022450970.png)

点击【Install】
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230737472-1648113618.png)

开始安装，安装完成后勾选【Run IntelliJ IDEA】点击【finish】
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230742166-388860150.png)

打开后需要激活，可以破解或激活码激活，如果激活码激活选择【Activate IntelliJ IDEA】、【Activation code】输入激活码进行激活，激活码网上有很多分享，可以自行百度
![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230749693-1537128544.png)

![](https://img2020.cnblogs.com/blog/2210127/202011/2210127-20201110230754235-1426198276.png)