Prefabricated concrete component convenient to install

The utility model discloses a concrete prefabricated part convenient to install, which comprises a concrete block, a built-in pipe assembly is fixedly installed in the concrete block, the left side and the right side of the upper part of the built-in pipe assembly are respectively connected with a sleeve I, and the left side and the right side of the lower part of the built-in pipe assembly are respectively connected with an insertion pipe I. When a plurality of concrete blocks are spliced and mounted, the first inserting column and the second inserting column respectively slide out of the first casing pipe and the second casing pipe, so that the first inserting column of one concrete block is inserted into the first inserting pipe of another concrete block, and then the second inserting column of one concrete block is inserted into the second inserting pipe of the third concrete block; and when the first inserting column or the second inserting column does not need to be used, the first inserting column or t