First yoi need to know about bitcoin.And you need to more read and study.Then you must have a bitcoin wallet.
what's the different between ETH wallet and bitcoin wallet? sorry i'm newbie too in this forum. thx in advance

ETH wallet is for Ether, and Bitcoin wallet is for bitcoin, they are two different currencies

Yes but we have wallets for bitcoin i suggest you should buy hardware wallets or get web wallets like electrum to store it! eth wallet i strongly urge to get MEW wallet to save your erc20 token