Objective: To revise the Interpersonal Curiosity Scale(IPC) in adolescents and assess its validity and reliability. Methods: Totally 632 adolescent students(sample 1) were recruited to complete the test version for item and exploratory factor analysis. Totally 456 adolescent students(sample 2) were tested with formal version for further confirmatory factor analysis, internal consistency reliability, combination of the reliability and composite reliability. The criterion validity was tested with the Epistemic Curiosity Scale(ECS) and State-Trait Curiosity Inventory(STCI) by choosing 301 adolescent students from sample 1. Totally 88 adolescent students from sample 1 were retested for test-retest reliability with a 2-week interval. Results: The IPC consisted of 17 items, including 4 dimensions, namely curiosity about emotions, spying and prying, snooping and curiosity about secret. The IPC had a good construct validity(χ²=251. 92, df=113, χ²/df=2. 23, CFI=0. 93, TLI=0. 92, GFI=0. 94, IFI=0. 94, RMSEA=0. 05). The IPC scores were positively correlated with the scores of ECS and STCI(r=0. 53, 0. 71, Ps <0. 001). The Cronbach’s α coefficients were 0. 84 for total scale and 0. 75, 0. 76, 0. 75, 0. 71 for the 4 factors. The test-retest reliabilities were 0. 84 for total scale and 0. 81, 0. 70, 0. 63, 0. 84 for the 4 factors. Conclusion:The Interpersonal Curiosity Scale(IPC) is a reliable tool to assess the interpersonal curiosity in Chinese adolescent students. [ABSTRACT FROM AUTHOR]