How can my friend send me invitation form Beijing in order to visit beijing?

You can use the invitation letter from your friend in China and copy of his/her Chinese ID for application. Make sure the invitation letter include details of your personal information of the applicant, such as name, gender,and date of birth. Also, purpose of the visit to China, travel itinerary such as date of entry and exit, places of visit, relationship between you and the inviter, and who will bear the expenses of the applicant in China.