An electronic component module includes a substrate including a first electrode pattern and a first resist pattern on a first main surface thereof, a first electronic component mounted on the first main surface via the first electrode pattern, and a component-embedding resin layer provided on the first main surface so as to embed the first electronic component therein, and including, in an inside portion or a lateral portion thereof, an interlayer connection conductor connecting the first electrode pattern and an external connection electrode pattern disposed on a surface of the component-embedding resin layer to each other. The first electrode pattern and the first resist pattern are arranged so that the first resist pattern is disposed on top of a circumferential portion of the first electrode pattern.