The Invention relates to the field of chemical medicines, and particularly to a purinyl-N-hydroxyl pyrimidine formamide derivative, preparation methods and uses thereof. The Invention provides a purinyl-N-hydroxyl pyrimidine formamide derivative with a structure shown in Formula I. The Invention also provides preparation methods and uses of said purinyl-N-hydroxyl pyrimidine formamide derivative. The purinyl-N-hydroxyl pyrimidine formamide derivative provided in the Invention can be not only a kinase inhibitor with PI3K and HDAC difunctional targets, but also a kinase inhibitor with single PI3K or HDAC functional target, thus providing a new choice for preparing multi-target inhibitors.