This article presents a comprehensive overview of 30-year research findings on maize silage with emphasis on modern trends and technologies. Maize consists of two distinct parts – cob (55% of plant dry matter) containing highly digestible starch (96%) and plant residue with 50-70% NDF fiber. Key is evaluating NDF digestibility, where 1% increase means 0.25 kg FCM milk production increase. Optimal dry matter at harvest is 30-35% with ideal at 33%, while differences between hybrids reach up to 12,900 kg milk/ha. Shredlage technology with longer chopping (26-30 mm) provides better fiber processing and milk yield increase of 0.9 kg/day. Basic requirement is rapid anaerobic environment creation with daily minimum 50 cm layer storage. Modern evaluation includes MILK 2006, DINAG systems and NIRs analysis for immediate parameter determination. Economic impacts include losses from non-optimal harvest timing (up to 20% yield) and quality influence on performance (up to 2 liters milk/day). Future trends lead toward automation, precision agriculture and NDF digestibility-based evaluation. Success depends on comprehensive approach from hybrid selection to perfect silage technology mastery.