Explosive Ordnance Disposal (EOD) robots are essential for safeguarding operators and reducing risks in high-threat environments. This study reviews international cases and current technologies to identify limitations and propose improvement strategies. Mission success depends on four core domains: mobility, power, manipulator precision, and communication. Current tracked and wheeled platforms lack self-righting, leading to research on flippers, wheel–leg hybrids, and quadrupedal locomotion. Battery reliance remains critical; short-term solutions include intelligent Battery Management Systems (BMS) and battery-exchange robots, while long-term progress requires high-density energy sources. Manipulator performance is hindered by inertia and backlash, but precision actuators, soft grippers, and sensor fusion with AI can enhance dexterity. Communication faces losses and jamming, requiring multilayered resilience with Software-Defined Radio (SDR), cognitive radio, relay nodes, and hybrid links. By mapping improvements to Technology Readiness Levels (TRL), this study suggests a phased roadmap where mature technologies address immediate needs, while AI-driven autonomy and secure networks define long-term advances.