With the advancements of micro and nanotechnology, the preparation and application of micro-optical components have become hot research topics. Biological compound eyes have the advantages of a large field of view, small size, and good dynamic characteristics. Hence, a microlens array, which is a commonly used bionic compound eye optical element, has a wide range of applications. Herein, an electroinkjet printing-based process is proposed to prepare a multi-focal-length curved microlens array to resolve the problem of out-of-focus blur caused by a mismatch between the focal length of the curved substrate and the plane image sensor. A planar multi-focal-length microlens array was prepared based on electrojet printing, and then the antistick treatment and inverted mold were used to obtain the lens die. Finally, a multi-focal-length curved microlens array with an overall radius of 6 mm was prepared via negative pressure bending and glue injection. The array has a focus range of 4.9‒6.23 mm and the total direction angle is larger than 60°.