Do China passport holders need a visa to visit PS?

Yes, a Chinese ordinary passport holder needs a visa. Palestine has no independent visa system; access to the West Bank is fully controlled by Israel, and Chinese citizens must obtain an Israeli B/2 tourist visa in advance from the Israeli Embassy/consulate in China. Gaza is effectively closed to tourists. Palestine (the West Bank and Gaza) does not issue its own tourist visas. As Wikipedia's Visa policy of Palestine notes, "there are no visa conditions imposed on foreign nationals other than those imposed by the visa policy of Israel." Because the Palestinian Authority does not control international borders, every foreign visitor entering the West Bank passes through Israeli-controlled crossings (Ben Gurion Airport via Tel Aviv, or the Allenby/King Hussein Bridge from Jordan). Entry therefore depends entirely on Israel's visa policy. Chinese ordinary passport holders are NOT on Israel's visa-exempt list and are NOT eligible for the ETA-IL electronic authorization (which covers only visa-waiver nationalities). They must apply in advance for an Israeli B/2 visitor (tourist) visa at the Israeli Embassy in Beijing or the consulates in Shanghai or Guangzhou. The B/2 visa permits stays of up to 90 days. The standard consular visa fee is about ILS 100 (roughly USD 27 / EUR 26), though service-center handling fees may apply. Note that diplomatic and service passport holders from China are visa-exempt, but this guide concerns ordinary passports. Gaza is controlled by Hamas and entry via the Rafah (Egypt) or Erez (Israel) crossings is not available for ordinary tourism, especially given the ongoing conflict. Travelers should also be aware Israel issues entry on a separate paper/electronic gate pass rather than a passport stamp. Given that no visa-free, visa-on-arrival, or eVisa channel exists for Chinese tourists to reach Palestine, the conservative and accurate verdict is visa-required.