This review article discusses the application of two-photon polymerization lithography (TPL) in imaging optics, highlighting its advantages and challenges. TPL is a nanoscale 3D printing technique that enables the fabrication of intricate structures beyond the optical diffraction limit through two-photon absorption in liquid resin. The article emphasizes the importance of evaluating optical performance, material properties, fabrication techniques, and applications of TPL in optical imaging. Key parameters for imaging device evaluation, such as aberration theories and imaging quality metrics, are discussed. The review also covers the fabrication of various optical elements, including refractive lenses, diffractive lenses, metalenses, and gradient index lenses, on different substrates and fibers. Challenges in achieving high-resolution and low surface roughness are addressed, along with methods to enhance adhesion and structural stability. The article concludes by discussing the potential of TPL in future optical imaging applications, emphasizing its role in miniaturization, advanced design, and high-resolution processing.This review article discusses the application of two-photon polymerization lithography (TPL) in imaging optics, highlighting its advantages and challenges. TPL is a nanoscale 3D printing technique that enables the fabrication of intricate structures beyond the optical diffraction limit through two-photon absorption in liquid resin. The article emphasizes the importance of evaluating optical performance, material properties, fabrication techniques, and applications of TPL in optical imaging. Key parameters for imaging device evaluation, such as aberration theories and imaging quality metrics, are discussed. The review also covers the fabrication of various optical elements, including refractive lenses, diffractive lenses, metalenses, and gradient index lenses, on different substrates and fibers. Challenges in achieving high-resolution and low surface roughness are addressed, along with methods to enhance adhesion and structural stability. The article concludes by discussing the potential of TPL in future optical imaging applications, emphasizing its role in miniaturization, advanced design, and high-resolution processing.