Evaluate the Pharmacokinetics, Pharmacodynamics, Safety and Tolerability of BGM0504 Injection in Non-diabetic Overweight or Obese Adult Subjects

Inclusion Criteria: * Body mass index (BMI) meeting one of the following requirements: 1. Between ≥ 30.0 kg/m2 and ≤ 40.0 kg/m2 (obese); OR 2. Between ≥ 27.0 kg/m2 and \< 30.0 kg/m2 (overweight) with at least 1 of the following: 1) One or more of prediabetes (impaired fasting plasma glucose and/or abnormal glucose tolerance), grade 1 hypertension, simple fatty liver or dyslipidemia; 2) Weight-bearing joint pain; 3) Obesity causing dyspnea or obstructive sleep apnea syndrome * Have a stable body weight (\<5% self-reported change during the previous 8 weeks) before screening * Capable of understanding the written informed consent document; willingly provides valid, signed written informed consent; willing and able to comply with the schedule, requirements and restrictions of the study. Exclusion Criteria: * Have allergic predisposition (allergic to 3 or more foods or drugs), or are allergic to glucagon-like peptide-1 (GLP-1) receptor agonists, or suffer from severe allergic diseases (asthma, urticaria, eczematous dermatitis). * Have received GLP-1 receptor agonists or similar drugs containing the same target within 12 weeks before screening. * Have received drugs that have an impact on body weight within 12 weeks before screening. * Surgical treatment for obesity. * Known type I/II diabetes. * History of acute or chronic pancreatitis or pancreatic injury. * History of drug abuse or alcoholism at screening.