Valve head assembly and water softener

The utility model provides a valve head assembly and a water softener, the valve head assembly comprises a valve main body, an end cover and a plugging piece, the valve main body is provided with a mounting channel and a communication port communicated with the mounting channel, and the outer wall surface of the valve main body is provided with a first limiting structure; the end cover covers the communicating port, and the end cover is provided with a second limiting structure; the first limiting structure and the second limiting structure are connected through an inserting and pulling piece and are mutually limited so as to be connected with the end cover and the valve body. The plugging piece can be rapidly plugged in the first limiting structure and the second limiting structure, so that the end cover and the valve body are rapidly connected or disassembled, the assembling and disassembling convenience of the end cover is improved, and corresponding parts can be rapidly replaced or maintained.