Why does Team Rocket want Ash’s Pikachu?
Trace why Jessie, James and Meowth single out Ash’s Pikachu instead of treating it as an ordinary member of the species.
Scope: Jessie, James and Meowth in the main Pokémon animated series
Quick answer
Jessie, James and Meowth begin targeting Ash’s Pikachu after seeing that it is unusually capable in battle. The official summary for “Ash Catches a Pokémon” says they realize there is something special about this Pikachu. Their pursuit then becomes a recurring personal objective, even though Pikachu is not a separate species or secret evolution.

Where the pursuit starts
Jessie, James and Meowth focus on Ash’s Pikachu after early encounters show that it can produce unusually effective attacks. The official summary for “Ash Catches a Pokémon” says Team Rocket realizes there is something special about this Pikachu and continues its pursuit.
What “special” means
The story treats Ash’s Pikachu as an exceptionally capable individual. It is still a Pikachu, not a hidden legendary Pokémon or an unrevealed evolution. The distinction matters because Pikachu as a species is not rare enough to explain years of pursuit on its own.
Why it keeps happening
Capturing Pikachu becomes Jessie, James and Meowth’s recurring goal and a personal rivalry with Ash’s group. The series repeatedly returns to that goal even when their individual plans change. There is no need to infer that Giovanni personally approved every attempt; the cited episode establishes Team Rocket’s interest, while later episodes sustain the pattern.
Sources
Official Pokémon and Nintendo pages anchor current facts. Community references are used to locate version-specific questions, then cross-checked before publication.