Cryptocurrency trading has been in full bloom since the beginning of 2017 when Bitcoin’s rapid ascend to sky-high prices began. It started the year worth less than $1,000 but has soared above $17,000. Unlike U.S dollar or Chinese RMB, digital currencies such as bitcoin are not issued by central banks like the Federal Reserve. Instead, they are ‘mined’ by computers using complex algorithms. As Bitcoin becomes more and more popular nowadays, it is worth exploring its pattern on price change to make a robust prediction. Since we do not have domain knowledge on Bitcoin, machine learning technique can help us to achieve our goal.