You Do Need power plug adapter while traveling from China to Palestine.

Here is Why You Need An Adapter

The outlet and plug type used in Palestine are C and H and in China are A, C and I. This is how they look like.

China

In China, outlets of type A, C and I are in use.

Type A

Type C

Type I

Palestine

In Palestine, outlets of type C and H are in use.

Type C

Type H