In response to the prevalence of perceived internship Pick-up Artist(PUA) behaviours and the lack of appropriate measurement tools, the purpose of this study was to develop and validate a new self-designed questionnaire, the Perceived Internship PUA Scale (PIPUAS), to assess college student interns' perceptions of internship PUA behaviours. The scale was developed based on interviews with college student interns. A sample of 340 college student interns from a provincial university in Hebei Province, China, participated in the study. Rasch analysis was used to examine the psychometric properties of the scale, including unidimensionality, monotonicity, item fit statistics, item polarity, item- and person-level reliability and separation, item hierarchy and measurement invariance across gender and birthplace. The results indicated that the PIPUAS is a unidimensional construct with good psychometric properties, although some issues need to be addressed to further improve the scale. The study's limitations and directions for future research were discussed.