He started playing the sport at the young age of 4, joining Eastern's youth system for a chance to become an international footballer.

He moved to England for a chance to get training of a higher quality,[1] and joined the Reading youth team and enrolled in Hall Grove School and then Bradfield College.

[4] On 16 July, he played his second game coming off the bench against Huddersfield Town and earned a lot of compliment for his outstanding performance.

[citation needed] On 10 July 2019, Dai joined Premier League side Wolverhampton Wanderers Under-23s for an undisclosed fee, signing a two-year contract with the option of a further 12 months.

On 16 July 2020, Wolverhampton Wanderers announced that Dai had completed a move to Chinese Super League side Shenzhen FC[14] He played in the first two matches of the 2020 CSL, starting in the first game and came on as substitute in the second.

He was entangled in an arbitration of contract dispute with the club and didn't play for them during the first half of the 2023 Chinese Super League season.

[15] On 28 June 2023, Dai joined fellow Chinese Super League club Shanghai Shenhua on a free transfer.

[19] Two weeks after the camp, Hong Kong manager Gary White once again named Dai in his preliminary squad for the 2019 EAFF E-1 Football Championship qualifiers.

"[22] [23][needs update] On 27 January 2022, Dai made his international debut for China against Japan in the 2022 World Cup qualifier as a substitute at the 64th minute.

Dai was named in China's squad for the 2023 AFC Asian Cup in Qatar and started the team's opening match against Tajikistan on 13 January 2024.