Acupoint needle-embedding demonstrates definitive therapeutic effects and high safety in the treatment of simple obesity. It effectively reduces patient body weight, BMI, waist circumference, body fat percentage, and other indicators. When combined with methods such as traditional Chinese medicine or Tuina, it produces synergistic effects. The clinical efficacy is influenced by the depth of embedding and the treatment frequency. Acupoint needle-embedding achieves weight loss through multiple pathways, including ameliorating leptin resistance, regulating peripheral fat metabolism, alleviating chronic inflammatory responses, and correcting intestinal flora disturbances. Current research still has limitations, such as short follow-up periods and insufficient procedural standardization. Future efforts should be directed toward rigorous clinical and mechanistic studies to enhance the standardization and precision of this therapy.