This paper examines the forms,semantic types,and form-meaning correlations of causative constructions in the Pingwu variety of the Baima language.It also compares the types of causative forms found in 29 Tibeto-Burman languages and dialects in China.The productive analytic type in Pingwu Baima,particularly the biclausal complex causative structure and postpositional marking,is the primary means for causative expression.The lexical and morphological types of causative forms exhibit non-productivity and lower usage frequency.Indirect and sociative causation are primarily expressed by the analytic types,while direct causation predominantly employs the lexical and morphological types.Nonetheless,lexical gaps may result in mismatches between causative forms and meanings expressed,and thus the biclausal complex causative structure is allowed to convey direct causation.