A toy assembling apparatus is disclosed. The toy assembling apparatus includes at least one connector, and each connector having at least one of a first connecting portion and a second connecting portion. The first connecting portion includes a connection plate and a connection pillar disposed on the connection plate. The second connecting portion includes a left side board, a right side board, a back side board, a bottom board, and a top board, which jointly form a containing slot for inserting the first connecting portion. The containing slot includes a plate slot for containing the connection plate and a pillar slot for containing the connection pillar. Limit grooves or limit protrudes are formed on the connection pillar. The pillar slot has protrudes or grooves formed thereon correspondingly. The limit grooves match the limit protrudes, such that the first connecting portion matches the second connecting portion of another connector tightly.