The aim of our study was to explore the conceptions related to partnership between dance sport couples. We conducted in-depth interviews with 20 registered athletes of the Chinese Dance Sports Federation (CDSF) about partnership between dance couples, using the Consensual Qualitative Research (CQR) method. Results revealed that partnership tended to stem from seven domains: (1) mutual understanding, (2) instant intimacy, (3) long-term affection, (4) obligational ties, (5) instrumental ties, (6) tacit factors, and (7) mutual self-disclosure. Each domain included several categories of core ideas, most of which were general and typical across the respondents. The general and most typical core ideas were related to mutual understanding in all aspects (17T), pleasure (18T), sense of substitution (15T), intimacy (20G), harmony (20G), mutual help (20G), mutual tolerance (20G), mutual attraction (15T), responsibility (20G), training plan (12T), consistent goals (20G), skills improvement (20G), image matching (16T), mutual self-disclosure (18T), which suggested a general belief in the equity perspective regarding partnership between Chinese dance sport couples. Future studies need to examine diverse samples of athlete–athlete dyads to advance interpersonal theory in sports and add to emerging theories of performance behavior and expertise in sport.