There is increasing evidence that many Chinese dialects, in comparison to Beijing Mandarin, exhibit distinct focus and intonation patterns. This study investigates how tone, focus and sentence-type-related intonation contribute to shaping F0 contours in Changli-Town Mandarin. Acoustic analysis of short sentences, produced by seven native speakers, was conducted, where sentence-final focus and declarative/interrogative intonation were considered as variables. The results reveal that (1) sentence-type-related intonation regulates the F0 curve through compulsory boundary targets, indicating a low target for declarative sentences and a high target for interrogative sentences, where incompatible tonal targets must be adjusted accordingly; (2) sentence-final focus modulates the global shape of the F0 curve by expanding the F0 range of on-focus syllables and oft-elevating the F0 register of all pre-focus syllables, where the pre-focus pitch elevation is argued primarily as a co-effect of focus and pragmatic purposes, enhancing listeners' attention to key information; (3) neutral tone emerges as the most common agent serving to coordinate tonal and intonational targets. Those findings suggest that in Changli-Town Mandarin, tone, focus and intonation interact to encode the F0 curve of a sentence by coordinating respective targets, with the boundary target exerting dominance. Those insights hold implications for prosodic typology.