The 2018 WCBA Playoffs was the postseason tournament of the 2017–18 season. It began on January 24, 2018.
Teams in bold advanced to the next round. The numbers to the left of each team indicate the team's seeding, and the numbers to the right indicate the number of games the team won in that round. Teams with home court advantage are shown in italics.
| First round 24 January–3 February | Semifinals | Finals | ||||||||||||
| 1 | Beijing Great Wall | 3 | ||||||||||||
| 8 | Zhejiang Chouzhou Bank Golden Bulls | 1 | ||||||||||||
| 1 | Beijing Great Wall | 3 | ||||||||||||
| 4 | Shanghai Swordfish | 0 | ||||||||||||
| 4 | Shanghai Swordfish | 3 | ||||||||||||
| 5 | Jiangsu Phoenix | 0 | ||||||||||||
| 1 | Beijing Great Wall | 3 | ||||||||||||
| 3 | Shanxi Flame | 0 | ||||||||||||
| 2 | Xinjiang Magic Deer | 1 | ||||||||||||
| 7 | Guangdong Dolphins | 3 | ||||||||||||
| 7 | Guangdong Dolphins | 0 | ||||||||||||
| 3 | Shanxi Flame | 3 | ||||||||||||
| 3 | Shanxi Flame | 3 | ||||||||||||
| 6 | Heilongjiang Dragons | 0 | ||||||||||||
- Bold Series winner
- Italics Team with home-court advantage
First round
- All times are in China standard time (UTC+8)
(1) Beijing Great Wall vs. (8) Zhejiang Chouzhou Bank Golden Bulls
| January 24 19:30 |
| Boxscore |
| Zhejiang Chouzhou Bank Golden Bulls | 88–80 | Beijing Great Wall |
| Scoring by quarter: 19–23, 21–17, 34–18, 14–22 | ||
| Zhejiang leads series, 1–0 | ||
| Meihu Arena, Yiwu, Zhejiang Referees: Wang Zebo, Kang Pengfei, Yuan Jun |
| January 27 19:30 |
| Boxscore |
| Beijing Great Wall | 96–61 | Zhejiang Chouzhou Bank Golden Bulls |
| Scoring by quarter: 31–13, 23–21, 18–18, 24–9 | ||
| Series tied, 1–1 | ||
| Shougang Basketball Center, Beijing Referees: Shi Jing, Liu Ke, Wang Yang |
| January 29 19:30 |
| Boxscore |
| Beijing Great Wall | 81–62 | Zhejiang Chouzhou Bank Golden Bulls |
| Scoring by quarter: 26–18, 17–17, 21–12, 17–15 | ||
| Beijing leads series, 2–1 | ||
| Shougang Basketball Center, Beijing Referees: Yang Xiaoguang, Wang Haiying, Hu Jing |
| February 3 19:30 |
| Boxscore |
| Zhejiang Chouzhou Bank Golden Bulls | 59–81 | Beijing Great Wall |
| Scoring by quarter: 19–23, 14–22, 20–19, 6–17 | ||
| Beijing wins series, 3–1 | ||
| Meihu Arena, Yiwu, Zhejiang Referees: Zuo Kun, Yu Yijing, Geng Zijian |
(2) Xinjiang Magic Deer vs. (7) Guangdong Dolphins
| January 24 19:30 |
| Boxscore |
| Guangdong Dolphins | 86–91 | Xinjiang Magic Deer |
| Scoring by quarter: 18–24, 19–23, 20–21, 29–23 | ||
| Xinjiang leads series, 1–0 | ||
| Dalang Arena, Dongguan, Guangdong Referees: Peng Ling, Wang Xiang, Ge Qian |
| January 27 20:00 |
| Boxscore |
| Xinjiang Magic Deer | 74–81 | Guangdong Dolphins |
| Scoring by quarter: 17–22, 15–21, 19–19, 23–19 | ||
| Series tied, 1–1 | ||
| Xinjiang Sports Centre Gymnasium, Ürümqi, Xinjiang Referees: Song Zhanjun, Zhang Dongmei, Li Pengbo |
| January 29 20:00 |
| Boxscore |
| Xinjiang Magic Deer | 73–83 | Guangdong Dolphins |
| Scoring by quarter: 14–20, 13–25, 26–17, 20–21 | ||
| Guangdong leads series, 2–1 | ||
| Xinjiang Sports Centre Gymnasium, Ürümqi, Xinjiang Referees: Shi Jing, Li Zhihui, Liu Qi |
| February 3 19:30 |
| Boxscore |
| Guangdong Dolphins | 89–78 | Xinjiang Magic Deer |
| Scoring by quarter: 16–24, 29–19, 19–18, 25–17 | ||
| Guangdong wins series, 3–1 | ||
| Dalang Arena, Dongguan, Guangdong Referees: Qiao Longsheng, Fang Wenxuan, Liu Ke |
(3) Shanxi Flame vs. (6) Heilongjiang Dragons
| January 24 16:00 |
| Boxscore |
| Heilongjiang Dragons | 81–92 | Shanxi Flame |
| Scoring by quarter: 19–19, 24–22, 24–28, 14–23 | ||
| Shanxi leads series, 1–0 | ||
| Daqing Gymnasium, Daqing, Heilongjiang Referees: Zheng Lei, Wang Qiulin, Pan Dazhi |
| January 27 19:30 |
| Boxscore |
| Shanxi Flame | 74–65 | Heilongjiang Dragons |
| Scoring by quarter: 21–14, 12–17, 25–14, 16–20 | ||
| Shanxi leads series, 2–0 | ||
| Shanxi Sports Centre Gymnasium, Taiyuan, Shanxi Referees: Zuo Kun, Shi Qirong, Liu Sen |
| January 29 19:30 |
| Boxscore |
| Shanxi Flame | 91–66 | Heilongjiang Dragons |
| Scoring by quarter: 21–17, 25–12, 26–17, 19–20 | ||
| Shanxi wins series, 3–0 | ||
| Shanxi Sports Centre Gymnasium, Taiyuan, Shanxi Referees: Zhang Wei, Liu Huabo, Duan Xiaopeng |
(4) Shanghai Swordfish vs. (5) Jiangsu Phoenix
| January 24 19:30 |
| Boxscore |
| Jiangsu Phoenix | 71–98 | Shanghai Swordfish |
| Scoring by quarter: 20–33, 21–18, 18–26, 12–21 | ||
| Shanghai leads series, 1–0 | ||
| Jiangning Sports Center Gymnasium, Nanjing, Jiangsu Referees: Zhang Wei, Xu Jian, Yu Yijing |
| January 27 19:30 |
| Boxscore |
| Shanghai Swordfish | 96–84 | Jiangsu Phoenix |
| Scoring by quarter: 18–23, 28–15, 23–18, 27–28 | ||
| Shanghai leads series, 2–0 | ||
| Baoshan Sports Center Gymnasium, Shanghai Referees: Yang Xiaoguang, Xue Kui, Liu Shuo |
| January 29 16:00 |
| Boxscore |
| Shanghai Swordfish | 86–76 | Jiangsu Phoenix |
| Scoring by quarter: 18–19, 25–17, 23–16, 20–24 | ||
| Shanghai wins series, 3–0 | ||
| Baoshan Sports Center Gymnasium, Shanghai Referees: Xue Kui, Chen Yingbai, Wen Zhilin |
Semifinals
(1) Beijing Great Wall vs. (4) Shanghai Swordfish
| February 10 19:30 |
| Boxscore |
| Shanghai Swordfish | 65–81 | Beijing Great Wall |
| Scoring by quarter: 20–15, 14–23, 13–24, 18–19 | ||
| Beijing leads series, 1–0 | ||
| Baoshan Sports Center Gymnasium, Shanghai Referees: Shi Jing, Zhang Wei, Wang Qiulin |
| February 24 19:30 |
| Boxscore |
| Beijing Great Wall | 85–62 | Shanghai Swordfish |
| Scoring by quarter: 21–14, 22–16, 24–17, 18–15 | ||
| Beijing leads series, 2–0 | ||
| Shougang Basketball Center, Beijing Referees: Jiang Zhiyuan, Shi Qirong, Feng Lei |
| February 26 16:00 |
| Boxscore |
| Beijing Great Wall | 76–72 | Shanghai Swordfish |
| Scoring by quarter: 22–25, 13–20, 24–14, 17–13 | ||
| Beijing wins series, 3–0 | ||
| Shougang Basketball Center, Beijing Referees: Wang Mei, Fang Wenxuan, Liu Shuo |
(3) Shanxi Flame vs. (7) Guangdong Dolphins
| February 10 19:30 |
| Boxscore |
| Guangdong Dolphins | 62–73 | Shanxi Flame |
| Scoring by quarter: 16–19, 16–19, 18–22, 12–13 | ||
| Shanxi leads series, 1–0 | ||
| Dalang Arena, Dongguan, Guangdong Referees: Xin Genwei, Xue Kui, Zhang Dongmei |
| February 24 19:30 |
| Boxscore |
| Shanxi Flame | 88–84 (OT) | Guangdong Dolphins |
| Scoring by quarter: 16–21, 24–16, 18–19, 21–23, Overtime: 9–5 | ||
| Shanxi leads series, 2–0 | ||
| Shanxi Sports Centre Gymnasium, Taiyuan, Shanxi Referees: Song Zhanjun, Zuo Kun, Liu Sen |
| February 26 19:30 |
| Boxscore |
| Shanxi Flame | 78–69 | Guangdong Dolphins |
| Scoring by quarter: –, –, –, – | ||
| Shanxi wins series, 3–0 | ||
| Shanxi Sports Centre Gymnasium, Taiyuan, Shanxi Referees: Yan Jun, Li Kai, Wang Zebo |
Final
(1) Beijing Great Wall vs. (3) Shanxi Flame
| March 10 16:00 |
| Boxscore |
| Shanxi Flame | 81–84 | Beijing Great Wall |
| Scoring by quarter: 21–19, 17–18, 22–23, 21–24 | ||
| Beijing leads series, 1–0 | ||
| Shanxi Sports Centre Gymnasium, Taiyuan, Shanxi Referees: Yan Jun, Shi Jing, Fang Wenxuan |
| March 12 16:00 |
| Boxscore |
| Beijing Great Wall | 82–55 | Shanxi Flame |
| Scoring by quarter: 19–11, 18–10, 19–17, 26–17 | ||
| Beijing leads series, 2–0 | ||
| Shougang Basketball Center, Beijing Referees: Qiao Longsheng, Zhang Wei, Shi Qirong |
| March 14 20:00 |
| Boxscore |
| Beijing Great Wall | 85–63 | Shanxi Flame |
| Scoring by quarter: 24–16, 23–13, 20–16, 18–18 | ||
| Beijing wins series, 3–0 | ||
| Shougang Basketball Center, Beijing Referees: Jiang Zhiyuan, Zuo Kun, Xue Kui |