Women’s bras have high requirements for comfort and fit, and precise measurements are especially important for their production. Measurement of the chest is the foundation and key to the design and production of bras. However, the curves of the female chest are complex, making measurement challenging. Existing methods mainly include manual measurement and body scanning. Traditional manual measurement methods require experience and the presence of the client on-site. Three-dimensional scanning methods yield abundant and accurate data but suffer from the drawbacks of expensive equipment and the need for clients to be present on-site, which fails to meet the increasing demand for remote measurement. To address this issue, this paper proposes a method for convenient remote chest measurement based on the reconstruction of three-dimensional human body models from two-dimensional images. By providing two photos of the front and side of the chest, clients can use the PIFuHD model to reconstruct these two-dimensional images into three-dimensional models, which are then calibrated and fused to generate a three-dimensional point cloud reflecting the shape of the client’s chest, thus achieving remote measurement of the client’s chest.