Chinese Box Office For May 2018
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Avengers: Infinity War | $359,543,153 | - | $191,034,859 | 53.1% | - | May 11 | - | Walt Disney Pictures |
| 2 | How Long Will I Love U | $135,346,907 | - | $36,693,056 | 27.1% | - | May 18 | - | - |
| 3 | A Quiet Place | $34,446,117 | 43 | $17,482,241 | 50.8% | - | May 18 | - | Paramount Pictures International |
| 4 | Solo: A Star Wars Story | $16,473,217 | - | $9,727,334 | 59% | - | May 25 | - | Walt Disney Pictures |
| 5 | Baahubali 2: The Conclusion | $11,951,545 | - | $7,684,709 | 64.3% | - | May 4 | - | - |
| 6 | Perfect Strangers | $8,060,716 | - | $2,870,441 | 35.6% | - | May 25 | - | - |
| 7 | I Am Your Mom | $5,743,612 | - | $3,882,239 | 67.6% | - | May 11 | - | - |
| 8 | The Young Karl Marx | $3,024,232 | - | $78,583 | 2.6% | - | May 5 | - | - |
| 9 | Hirugao: Love Affairs in the Afternoon | $2,225,294 | - | $1,179,875 | 53% | - | May 18 | - | - |
| 10 | My Pet Dinosaur | $1,334,897 | - | $992,571 | 74.4% | - | May 31 | - | - |
| 11 | Hong Kong Rescue | $1,034,623 | - | $776,557 | 75.1% | - | May 4 | - | - |
| 12 | Megan Leavey | $1,028,409 | - | $607,152 | 59% | - | May 11 | - | - |
| 13 | Princess and the Kingdom | $1,021,930 | - | $235,965 | 23.1% | - | May 12 | - | - |
| 14 | To My 19-Year-Old | $678,553 | - | $109,915 | 16.2% | - | May 29 | - | - |
| 15 | Our Youth | $399,868 | - | - | - | - | May 4 | - | - |
| 16 | Walking Past the Future | $387,766 | - | $105,016 | 27.1% | - | May 17 | - | - |
| 17 | Farewell, My Love | $287,404 | - | $158,446 | 55.1% | - | May 12 | - | - |
| 18 | End of Summer | $286,549 | - | $122,503 | 42.8% | - | May 25 | - | - |
| 19 | The Lost Land | $212,590 | - | $128,809 | 60.6% | - | May 18 | - | - |
| 20 | Fate Express | $157,047 | - | $142,482 | 90.7% | - | May 25 | - | - |
| 21 | House Number 7 | $81,834 | - | $45,737 | 55.9% | - | May 11 | - | - |
| 22 | You'll Never Walk Alone | $45,997 | - | $14,209 | 30.9% | - | May 11 | - | - |
| 23 | Three Spaces | $40,417 | - | - | - | - | May 31 | - | - |
| 24 | Counterespionage | $39,290 | - | - | - | - | May 26 | - | - |
| 25 | The Parents in the World | $26,334 | - | $20,808 | 79% | - | May 13 | - | - |
| 26 | Looking for Goddess Jiao Ai | $23,688 | - | - | - | - | May 11 | - | - |
| 27 | Catch the King | $18,824 | - | $18,824 | 100% | - | May 18 | - | - |
| 28 | The Secret Board | $7,432 | - | $7,432 | 100% | - | May 25 | - | - |
| 29 | The Dream | $5,178 | - | $4,405 | 85.1% | - | May 11 | - | - |
