His father, Chang Xudong, sold the family house and quit his job as an engineer to help his son's career, and the pair practiced together.

By beating experienced professionals Mei Xiwen, Ju Reti and Chen Feilong, he reached the final of the Baoying Open, narrowly losing 5–4 to Cao Yupeng after recovering from 4-1 behind.

[citation needed] In 2018, Chang Bingyu won the IBSF World Snooker Championship, a leading amateur event.

In 2019 Chang had finished at the top of the China amateur rankings, thus qualifying for the World Snooker tour for the 2019–20 and 2020–21 seasons.

He reached the third round of the UK Championship, beating Sam Craigie and Mark Allen before narrowly losing to Zhou Yuelong 6–5.

In the World Championship he beat Julien Leclercq and Tom Ford before losing a high-quality 'Judgement Day' encounter with Lyu Haotian 10–6, a match which contained 5 century breaks.

Chang Bingyu finished the season ranked 69, but his position on the 1-year list meant he qualified for a new 2-year tour card.