what are the requirements we need to obtain a chinese visa in going to jiang su, china to visit a relative?

good day.. Im writing to ask what are the requirements we need to obtain a chinese visa in going to jiang su , china to visit a relative,im travelling with a child so what kind of visa do we need ,is it a tourist visa enough so we can stay there for at least a month,,im still here in spain now could someone else apply our visa in behalf of me before im back to philippines please reply i need some information,, thank you.