how i can apply the peru visa

Hassan, you can apply for a tourist entry permit to go there. The required documents include your passport and copy of its data pages, the completed application form affixed with a passport-style photo, your entry permit to mainland PRC, round trip air tickets, proof of accommodation arrangement, proof of your financial support, and the invitation letter from your friend as well as other relevant documents required by the consular officers.
Afterwards, submit your application to the embassy if Peru to apply for it.